double dish disorder 

The irrational rage caused by someone ordering the same dish as you while at a restaurant.

1: I'll have the sweet and sour chicken.
2: Hmm. I think I'll have the sweet and sour chicken too.
1: What?
2: I'll have the sweet and sour chicken too.
1: You can't have that.
2: Why not?
1: Because I'm having that. Pick something else.
2: I can't have the same thing as you?
1: No. No you can't. Pick something else. Now.
2: Jesus, looks like someone's got a case of double dish disorder...
(1 stabs 2 in the eye with a chopstick)

double dish disorder by FreemDeem November 19, 2009