Here is another hand I played terribly.

Villain is a complete maniac. 85/50 through 68, with 63% Agg. He could literally have anything. But of all the maniacal stuff I'd seen him do, pushing was not one of them. How do I call this? (Please don't say easily)

Reasoning behind the small flop raise was ... I'm an idiot? Any other river card and I'm calling with lightning speed. Argh.

PokerStars No-Limit Hold'em, $0.02 BB (7 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

UTG ($0.98)
MP1 ($3.43)
Hero (MP2) ($8.44)
CO ($2.96)
Button ($3)
SB ($2.10)
Villain (BB) ($3.77)

Preflop: Hero is MP2 with K, K
2 folds, Hero bets $0.10, 3 folds, Villain calls $0.08

Flop: ($0.21) K, 3, 4 (2 players)
Villain bets $0.08, Hero raises to $0.16, Villain calls $0.08

Turn: ($0.53) 5 (2 players)
Villain checks, Hero bets $0.40, Villain calls $0.40

River: ($1.33) 2 (2 players)
Villain bets $3.11 (All-In), Hero folds

Total pot: $1.33 | Rake: $0.05