This guy bought in short and pushed many times. He was loose and showed down some poor hands. I figured I would call and hope he was bluffing or hope the board paired. There are two players to act after me. Anyone disagree with this move?

***** Hand History for Game 3123361226 *****
0/0 Texas Hold'em Game Table (NL) - Wed Nov 30 22:41:34 EST 2005
Table Table 66468 (Real Money) -- Seat 6 is the button
Total number of players : 9
Seat 1: emetique ( $32.90)
Seat 2: baracuda_74 ( $19.25)
Seat 3: CowCow777 ( $11.26)
Seat 4: zflynn ( $30.65)
Seat 5: Baaash ( $42.09)
Seat 6: timidgabe ( $15.01)
Seat 8: munk8 ( $14.97)
Seat 9: jandje ( $33.05)
Seat 10: mr_zee ( $5.05)
munk8 posts small blind (0.10)
jandje posts big blind (0.25)
** Dealing down cards **
Dealt to jandje [ 4s, 4h ]
mr_zee raises (1) to 1
emetique folds.
baracuda_74 folds.
CowCow777 calls (1)
zflynn folds.
Baaash folds.
timidgabe folds.
munk8 calls (0.90)
jandje calls (0.75)
** Dealing Flop ** : [ 6c, 4c, Ac ]
munk8 bets (13.97)
munk8 is all-In.