2/4 NL
My opponent and I both have about $400. We've been in a buch of hands. He's LAG.

I'm dealt AKo on the button. Couple of limpers. I raise to $20. Only LAG opponent calls.

FLOP $50
JQA rainbow

LAG checks. I check.

TURN $50
JQAJ rainbow

LAG checks. I check.

RIVER
JQAJJ

LAG bets $50. I call. LAG shows KT for the flopped nut straight. My running full house wins

I just knew.

Wait. If you knew shouldn't you raise the river?

no no..I just knew I was losing on the flop. after taht i was just confused lol.

Still doesnt explain why you didnt raise the river. Dont you have to at least min raise there?

Why is there any value in raising here?

Any ace will call you to split. the jack will put you all in.

He'll fold any non-ace, non-jack hand (unless he's a complete muppet)

He obviously IS a complete muppet. How can a LAG check the nut straight on the flop but then bet when any pair has him beat?

I guess he thought Kenny had TT and wouldnt call?

Don't underestimate the muppet-ness of players in general geewhiz. I've seen people pay off raises in situations like these with 33. Sometimes with worse.