Cough and sniff a lot. As you make each move, pick up the piece, put it against your lips, and ruminate.

Your opponent will be very reluctant to take any of your pieces. 

Should your opponent go to the toilet during a game you can use this opportunity to glue all his/her pieces to the board, this will ensure that you will  win on time.

A more subtle approach is to glue the button of your clock down ensuring your opponent cannot change the clock back to run down your time,..... all that you need do now is remember to have a book with you to read while you wait.

Method three:

While your opponent is in the bathroom, glue the door closed, go and make your move and wait for the clock to run out.

Remember, glue is your friend.

I once played this guy OTB, and every time I made a move, he touched my moved piece ( said: adjust), to annoy me. The thing is I have a USCF apx 1300, and he was USCF apx 2300.  So really, he was a lot better player, he didn't have to do that.

Players who uses intimidation ploys, I have no beef, It's on the other end, you see, so my advice is:

DON'T LET IT BOTHER YOU!

You couldve placed your chair around the temple region of your opponent while shouting J`ADOUBE!, he may have thought twice about doing it again.

Something one could try is everytime you decide to move do it in quick fashion and knock down tons of pieces...could work.

In a tight game - it can help to give you the edge if you commentate on it as it happens:

"The handsome Welshman reaches his muscled forearm forward to push Daffyd (the d-pawn) up the board towards inevitable promotion.  His greasy haired opponent is proper flummoxed.  He hesitates and is overcome by the suffocating realisation that the intellectual behemoth across the board is his utter master.  Hopelessness floods over him like a Tsunami of futility.  His spirit crushed he retreats from the brink of suicide to merely resign in humiliation and despair"

It's cracking fun

1. Move your piece
2. Hit the timer
3. Turn around
4. Sing (Celine Dion is acceptable)
   
5. 2 minutes after your opponent has moved, turn back around
6. Quickly decide on a move (in under 10 seconds)
7. Repeat as many times as necessary, then move to step 8
   
8. WIN  

A variation of all this is to give your opponen a hearty greeting, shake his hand with both of yours, pumping like you are trying to draw water from a dry well, and, as a continueing distraction, read in a mumbled tone throughout the entire game from a pointless, irrational, but often humerous, selection -- say -- oh -- for example -- uh -- THIS THREAD!!  Then when you are escorted from the venue, scream that it is only because (insert your country) has never been respected in the chess world. 

You think he acheived that rating by being good at playing chess?

You Englishman are funny chaps I must say. Btw, Harry don't worry about it, it's a harmless mistake. I'm sure you did not mean any malintent by it, not like you offered peanuts to someone with an allergy (now that would be offensive).

If you pulled that petty crap on me I'd induce vomiting on your leg.

I'd make your leg start vomiting.

Knives and fake scars, even belligerent annotation, these things are for pussycats. Have a friend approach the board at a critical moment and greet you with, 'Claude! Great to see you! After all these years!' Your opponent will quail, however stern his stuff.

All you have to do is instead of staring at the board for an hour, look around at the scenery. Don't show to much emotion, and when you make a mistake in a move just act as though it never happened and hope he/she doesn't see it. Chess includes a small amount of psycology and it is fun to take that slight advantage.

 Why else?  Constant adjusts?  You suppose?

 Thx lol!

Here are some psychological traps I usually employ.

1. Tell the opponent all about the latest fashions in opening theory and blow through 20 moves of complicated terror and nonchalantly exclaim it as an easy position to draw.  This leads them to believe you have studied and will crush them.

2. When your opponent goes into a long think, look into his eyes and stare.  When you believe he is beginning to make up his mind about a certain move and calculations regarding that move, distract him by asking for his notation or something like that.  It will throw off his thought process.

3. If you are losing the game badly, just make your opponent wait until your clock hits 5 mins.  Then start blitzing off moves as fast as you can.  Your opponent will likely keep pace with you in the game because of what you did earlier and the fact that he wants to run you out of time.  Doing this will turn a losing long game position into a losing blitz game position, which is a lot easier to come back from. 

4. Start quoting rules from the rulebook to a friend close by while your opponent is watching you.

5. Disregard everything I just said.  Even though it sometimes works, it is poor sportsmanship to apply it.

I don't believe in psychology I believe in good moves - Bobby Fischer

 All part of Fischer's mind games, postal.

Did the Frazzles actually contain any pieces or parts of pig?

If not, then your generous offer was quite acceptable.  After all, there are Jews that eat lobster (at least according to Seinfeld)... who are you to judge?

Besides... if ones opponant does not possess the intestinal fortitude for these forms of tactics, then they are not worthy of the win, and would just as easily fall to feints.  Ever see someone throw in a piece that looked like it was going to ruin your entire day..... except that you had a permacheck on them, and their attack was a meaningless attempt to distract you from your obvious win?

Emotion is always the enemy of the mind.  Chess is a game of mind vs mind. Every chess player knows to keep their emotions out of the game, and if they are not capable of doing so, they are lost anyway.  Why feel bad about exploiting that particular weakness?  You wouldn't feel bad about exploiting their inability to look 3 moves ahead, or their apparent inability to protect their king, or support their pieces.  Why feel bad about their inability to control their own emotions?