My preflop call in this hand was loose, but I felt that I wouldn't lose any value post-flop if I flopped an ace and that I could play draws aggressively. I was not prepared for this, though:

Full Tilt No-Limit Hold'em, $0.25 BB (9 handed) - Full-Tilt Converter Tool from FlopTurnRiver.com

MP2 ($25.60)
MP3 ($5)
CO ($37.10)
Button ($4.65)
SB ($24.05)
Hero (BB) ($29.25)
UTG ($25)
UTG+1 ($24.05)
MP1 ($32.50)

Preflop: Hero is BB with A, 10
3 folds, MP2 raises to $0.75, 1 fold, CO calls $0.75, 2 folds, Hero calls $0.50

Flop: ($2.35) 9, 3, J (3 players)
Hero checks, MP2 bets $24.85 (All-In), CO calls $24.85, Hero raises to $28.50 (All-In), CO calls $3.65

I estimated 35% equity which makes this about break-even UNLESS I'm up against a flush draw and KK (best case) or a set + AA (worst case)