This one is pretty easy- A man was playing a game, and got the highest score of all. He became so angry that he vowed to not play the game anymore. Why?
Solve this Riddle if you can

This one is pretty easy- A man was playing a game, and got the highest score of all. He became so angry that he vowed to not play the game anymore. Why?
Golf. (edit) beat me to it TheGrobe.

This one is pretty easy- A man was playing a game, and got the highest score of all. He became so angry that he vowed to not play the game anymore. Why?
The game was how many STDs you had accumulated and the community in which he lived was very conservative. Also this community enjoyed watching trashy TV programs and it was on just such a program that this man was competing when he achieved the highest score of all.
Also he had no health insurance.

A classic, and extremely difficult one:
Suppose you’re on a game show, and you’re given the choice of three doors. Behind one door is a car, behind the others, goats. You pick a door, say #1, and the host, who knows what’s behind the doors, opens another door, say #3, which has a goat. He says to you, "Do you want to pick door #2?" Is it to your advantage to switch your choice of doors? Why or why not?

A classic, and extremely difficult one:
Suppose you’re on a game show, and you’re given the choice of three doors. Behind one door is a car, behind the others, goats. You pick a door, say #1, and the host, who knows what’s behind the doors, opens another door, say #3, which has a goat. He says to you, "Do you want to pick door #2?" Is it to your advantage to switch your choice of doors? Why or why not?
Always switch. It increases your chances from 1/3 to 2/3.

The reason is that the host knows which door has the prize. As he will remove a door with a goat behind, the only way you would be better off sticking is if you had picked the correct door first time. a 1/3 chance. If you picked either goats, the host removes the other one meaning the prize is behind the door you didn't pick originally.

A classic, and extremely difficult one:
Suppose you’re on a game show, and you’re given the choice of three doors. Behind one door is a car, behind the others, goats. You pick a door, say #1, and the host, who knows what’s behind the doors, opens another door, say #3, which has a goat. He says to you, "Do you want to pick door #2?" Is it to your advantage to switch your choice of doors? Why or why not?
It's fun to work out the logic to this answer... after you've been told the answer that is. As you said very difficult to solve on your own.

You can also do it with cards. Find the ace say. Your friends won't believe you untill you repeat it a few times with the cards face up. Then it becomes obvious. If you were unscrupulous, you could even win money with it.

Another way of making it intuitive is to increase the number of options. Say there are one million cards but only 1 is correct. You pick one. Then 999,998 incorrect cards are removed from play. Would you switch to the one remaining card or do you believe you selected the correct card in the beginning?

Who is number 1 in chess in the world currently?
http://ratings.fide.com/top.phtml

I concluded from the second sentence that all people shaked at least once somebody elses hand, i.e. there was no one who did not shake 0 hands. In combination with the second and third sentence that there were reasons for some people to make distinctions who to shake hands and who not.
You are correct that the rest of the paragraph makes this interpretation impossible. That was also my interpretation. Anyhow, you have found it and I congratulate you with that. I did not know if I would have found it. It is too hard for me to imagine that you come at a party and you do not exchange the friendliness of shaking hands without very very compelling reasons. :-)
no its not six