guy had been playing his short stack pretty well and shoved a few times recently when folded to him

do i iso/shove here?

pokerstars Game #28425397877: Tournament #163920862, $8.00+$0.80 Hold'em No Limit - Level XXVII (12500/25000) - 2009/05/20 17:18:12 ET
Table '163920862 58' 9-max Seat #8 is the button
Seat 1: x.UnLuCkY.x (606899 in chips)
Seat 2: BluNTzz549 (1555756 in chips)
Seat 3: bonbon86 (180552 in chips)
Seat 4: bunnyoo2511 (692446 in chips)
Seat 5: remcovn (634517 in chips)
Seat 6: eight2bluff (2268215 in chips)
Seat 7: RonWR (243115 in chips)
Seat 8: silviodante1 (767500 in chips)
x.UnLuCkY.x: posts the ante 2500
BluNTzz549: posts the ante 2500
bonbon86: posts the ante 2500
bunnyoo2511: posts the ante 2500
remcovn: posts the ante 2500
eight2bluff: posts the ante 2500
RonWR: posts the ante 2500
silviodante1: posts the ante 2500
x.UnLuCkY.x: posts small blind 12500
BluNTzz549: posts big blind 25000
*** HOLE CARDS ***
Dealt to x.UnLuCkY.x [Ad Th]
bonbon86: folds
bunnyoo2511: folds
remcovn: folds
eight2bluff: folds
RonWR: raises 215615 to 240615 and is all-in
silviodante1: folds
x.UnLuCkY.x: ?????