Never seen this before

[Rhound50]

This hand happened at Commerce $100 buy in table. 5 players limp preflop, this has been a horribly played table, it almost felt like playing a $50 party table. So the flop is 3 big cards. It checks around. Turn is a 4, short stack in 3rd postion goes all in for $32 chips, gets one caller the all in player gives the oh crap look as the second player calls so I'm pretty sure he was trying to steal the pot. River is another big card. Player all in turns over 6/2 off, and laughs. Player two looks at his hand and says thats good, i'm playin the board. Turns over 3/2 off suit, he didnt even have a draw. I was pretty shocked I've never seen someone win an all-in with 6 high.