Somehow I won a $ 11 ticket for a knockout tournament, I expected that there would be only good players and i decided to play carefully.
I had an AA hand, I raised 2.5bb with UTG, the player on SB made a 3-bet. I'm all in, he's Call. His hand is KQo. and he took his two pairs and knocked me out of the tournament.
From this I concluded that idiots exist in any tournaments, both in expensive and cheap ones)