I had been playing with this guy for about an hour. He was a 34/17.
Cake - $0.04 NL (6 max) - Holdem - 6 players
Hand converted by PokerTracker 3
SB: $5.50
Hero (BB): $4.71
UTG: $4.61
MP: $1.80
CO: $1.93
BTN: $3.54
SB posts SB $0.02,
Hero posts BB $0.04
Pre Flop: (pot: $0.06) Hero has 4

5
fold,
fold,
fold,
fold,
SB raises to $0.12,
Hero calls $0.08
Flop: ($0.24, 2 players) 2

2

3
SB bets $0.04,
Hero calls $0.04
Turn: ($0.32, 2 players) 4
SB bets $0.68,
Hero calls $0.68
River: ($1.68, 2 players) K
SB raises to $4.66 and is all-in,
When he bets the turn, I feel like he either is sitting on a scared overcard, flopped trips or has garbage. Prior to this hand, I watched him willing to stack off with second pair on a K high board and shove a straight on the river when the flush got there.
Anyways, the river feels like a correct fold, though I'm questioning if I should have even bothered with the turn and just waited for a better spot.