I raised when I meant to fold:

PokerStars Limit Hold'em, $1.00 BB (10 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

Preflop: Hero is BB with 5, Q
UTG calls, 4 folds, MP3 raises, 2 folds, SB calls, Hero 3-bets, UTG calls, MP3 calls, SB calls

Flop: (13 SB) J, 2, 8 (4 players)
SB checks, Hero bets, 1 fold, MP3 calls, 1 fold

Turn: (7.5 BB) Q (2 players)
Hero bets, MP3 calls

River: (9.5 BB) J (2 players)
Hero bets, MP3 calls

Total pot: $11.50 (11.5 BB) | Rake: $0.50

Results:
Hero had 5, Q (two pair, Queens and Jacks).
MP3 mucked 10, 10 (two pair, Jacks and tens).
Outcome: Hero won $11