($5) BB all in 4 handed, wierd spot

[pa3lsvt]

I figured I'd limp and we could all collude the BB into 4th place, then all hell broke loose. Anyone NOT fold here?

PokerStars No-Limit Hold'em Tourney, Big Blind is t100 (4 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

BB (t20)
Hero (t4645)
Button (t2675)
SB (t6160)

Preflop: Hero is UTG with Q[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/heart.gif[/img].
Hero calls t100, <font color="#CC3333">Button raises to t500</font>, <font color="#CC3333">SB raises to t1900</font>, Hero ?