People tend to overestimate their opponents' good luck and their own bad luck, and underestimate their opponents' bad luck and their own good luck.
It's very obvious when you draw two clashing terminals, but it's not as obvious when it happens to your opponent, since you only see him play one of them.
Just yesterday, I had the following happen in a Colony game with KC and Mountebank.
So, this guy get's 5/2 and buys Mountebank on the first turn:
19:15 Stoc: hi, gl
19:15 Player2: hi
19:16 Stoc: ugh
19:16 Player2: yea
19:16 Player2: turn 1 kill
19:16 Stoc: I wish that box for same starting hands worked in automatch
19:16 Player2: yup
Then, I get my KC before him:
19:18 Player2: that was pretty ulcky
19:18 Stoc: yeah, guess it works both ways
19:18 Stoc: really the more I play, the more games I see decided by luck. Unless there's major skill dif
Then, the next shuffle, I draw my KC and Mountebank together:
19:20 Stoc: for example...
19:21 Player2 has returned to the lobby. (resigned)
I also had another guy berate me on my "totally undeserved win" due to the fact I had pulled Ambassador out of the Black Market before he rage quit.
http://councilroom.com/game?game_id=game-20110625-164457-2ada0f08.html