What OTB behavior REALLY annoys you?

I see, thanks for the info.

Our city chess club provides sets for tournaments but none of the big tournaments in Orlando or St Pete provide sets...probably because you're usually dealing with large groups (100+).

Perpetual check is preferable online than OTB... 

You sound sensitive Bawker...oversensitive maybe...

Nose picking would irritate me...and playing with things like a pawn or a ballpoint..but for the rest it is give and take...

Are you sensitive to these things?

And he very well might be.  I know a guy that lets every little noise bother him.  He has shown up at tournaments with ear plugs in and wearing ear muffs.  

- people who place the pieces at the edge of the square

- people who beg for a draw when they are losing, or people who think they can intimidate me by weird behaviour (I once played a guy who used to blitz out his moves, slamm the clock and stare at me)

- but most relevantly, people who play strong moves

Overreacting and jumping about of the opponent annoys me

@Diakonia If by "big tournaments" you mean large CCA events, then, actually, no. CCA doesn't provide sets. But if you mean official events like US Champs/Junior Closed, then yes.

Especially if done with captured pieces - though if it was a knight it might be quite interesting....

Does that sound fishy?

With due respect, Bawker, one of my biggest pet peeves is the behaviour of those people who are overtly irritated over the pettiest things that regular people don't need to be irritated over.

Already, reading your very first pet peeve annoys me: why should using both hands to switch the King and Rook at the same time have to be such a big bother that you have to relieve frustration of it through post?

Already, another of your pet peeve makes me roll eyes the same: slamming a piece to capture another piece? You mean how people use their pieces to bump off enemy pieces to put theirs in place before taking the captured enemy piece off the board? Isn't this how most people do it? (Unless the player was suffering from some form of mental condition involving aggression or was simply lightheartedly annoying their fellow good oponent (family friend, mayhaps?), I almost never see people actually slam pieces.)

Already, yet another one: sliding pieces versus lifting and landing them. Again, so most chess players annoy you then?

I say, we're all here to enjoy each other's company. Otherwise, since most of us have broken more than half of your pet peeves at some point in our chess careers, we should all probably back away from you. 

when somebody picks the board up and throws it after you checkmate him.this happened to me twice once was my fault ;something i said. the other time was his i guess he was a poor sport. it gets the tourney directors attention  i can tell you that!!

Extremly bad taste in clothes, coupled with lack of a shower on game day.

Add poor AC and you get the picture.

bumping a piece off the board by whacking it with the capturing piece gives away ones social class and should be banned.

-When people purposely look you straight in the eyes.  
-When they make annoying noises with their throat and/or nose (or even plain disgusting sounds like smacking lips)
-When they fail to sit still for literally two seconds.
-When you had a better position all game but somehow give it away and the opponent acts all tough in the after game analysis.
-When people you sat next to during an embarassing defeat remind you of that at the start of the next game. 

Multiple draw offers.  Offering a draw in a losing position can be an acceptable psychological ploy...once.  When the player down the table is offering a draw every move, it's vastly annoying to everyone within earshot.  Luckily this is something a TD can usually stop.

Our main playing hall is next to the skittles room, and I don't know what the kids do in there, but once in a while there will be a huge THUD as if someone hit the intervening wall with his whole body.  Argh.

I also have one young opponent who often seems to have a cold, and ends up with mounds of soggy tissues all along his edge of the board.  I know he can't help sniffling but he could throw his stuff away.  (But really the problem with that particular child is he's nine, hyper, restless, and quite a bit better than me.  As many commentators have noted, this is the real affront.)

One of the few common things that bothers me is this weird idea of "screwing a piece into a square."  I've had opponents do that several times when playing me.  It's some weird intimidation tactic or something.  I guess the ego or hubris or whatever attached to it is actually what annoys me.  It's such an absurd idea that rotating a piece in a square as you set it down is supposed to do something special.  I take it back, it's the stupidity of the idea that annoys me.

I have to say, in regards to the OP, I have absolutely no idea why sliding a piece on a chess board would be annoying.