And sometimes you won't stop sucking out on others.

Today was a great day to be the suckout king as I hit a 1-outer and then a 2-outer. The first hand is just for show, but the second one I want some feedback on.

Hand #1
Party Poker No-Limit Hold'em, $ BB (10 handed)

UTG+1 ($27.75)
UTG+2 ($31.14)
MP1 ($23.25)
MP2 ($0)
MP3 ($36.1)
CO ($45.8)
Button ($20.65)
SB ($5.4)
BB ($62.71)
Hero ($21.5)

Preflop: Hero is UTG with , . SB posts a blind of $0.1.
Hero calls $0.25, 1 fold, UTG+2 raises to $1.5, 6 folds, Hero calls $1.25.

Flop: ($3.35) , , (3 players)
Hero checks, UTG+2 bets $3, Hero raises to $6, UTG+2 calls $3.

Turn: ($15.35) (3 players)
Hero bets $14 (All-In), UTG+2 calls $14.

River: ($43.35) (3 players, 1 all-in)

Final Pot: $43.35

Results in white below:
Hero has 6d 6s (four of a kind, sixes).
UTG+2 has Jh Jc (full house, jacks full of sixes).
MP2 has (full house, jacks full of sixes).
Outcome: Hero wins $43.35.

That six on the river was fun to see.

Hand #2
Party Poker No-Limit Hold'em, $ BB (9 handed)

MP1 ($53.42)
MP2 ($9.49)
MP3 ($22)
CO ($26.75)
Button ($35.75)
SB ($46.8)
BB ($25)
UTG ($61.21)
Hero ($39.88)

Preflop: Hero is UTG+1 with , . SB posts a blind of $0.1.
UTG calls $0.25, Hero raises to $1.5, 3 folds, CO calls $1.50, 3 folds, UTG calls $1.25.

Flop: ($4.85) , , (3 players)
UTG checks, Hero checks, CO bets $25.25 (All-In), UTG folds, Hero calls $25.25.

Turn: ($55.35) (2 players, 1 all-in)

River: ($55.35) (2 players, 1 all-in)

Final Pot: $55.35

Results in white below:
Hero has Ad Ah (three of a kind, aces).
CO has Kc Kh (three of a kind, kings).
Outcome: Hero wins $55.35.
So I hit my Ace on the turn to beat the three kings. Here's my train of thought on this flop. Villain was a super lag and I was sure he would bet anything if checked to him. I didn't expect him to go all-in. The only thing I can think here is that he is trying to steal in a moronic way. I would have folded if UTG called, but CO could have a King with any kicker. Also, he didn't reraise me preflop so I didn't think he had KK.

So my question is how would you guys play a lag in this situation?