JJ in Level 5 ($22s)

[niquewon]

***** Hand History for Game 2552002812 *****
NL Texas Hold'em $20 Buy-in + $2 Entry Fee Trny:14925950 Level:5 Blinds(75/150) - Wednesday, August 17, 18:37:17 EDT 2005
Table Table 13971 (Real Money)
Seat 9 is the button
Total number of players : 5
Seat 9: Ebel331 ( $970 )
Seat 7: thedavalry ( $490 )
Seat 5: MrNikko ( $1652 )
Seat 2: Rontti ( $1755 )
Seat 8: clayton10 ( $3133 )
Trny:14925950 Level:5
Blinds(75/150)
** Dealing down cards **
Dealt to MrNikko [ Jd Jc ]
thedavalry is all-In.
clayton10 folds.
Ebel331 calls [490].


My read was that the shortstack had been fairly aggressive and could be pushing with any two cards but the caller had been pretty tight and aggressive up to this point. Prior to this hand the caller had raised pretty much every pot he'd entered so I wasn't sure what to make of the call. I don't think merely calling is an option so should I fold and leave myself with 10BB or push risk leaving myself with 4.5BB?