How do people make these calls? This is half his stack on 56o


Everleaf Gaming Game #244128654
***** Hand history for game #244128654 *****
Blinds 1500/3000 NL Hold'em - 2011/02/22 - 03:15:52
Table 1
Seat 5 is the button
Total number of players: 10
Seat 1: Blackstongal ( 30430 Chips )
Seat 2: ODPB ( 87040 Chips )
Seat 3: cruiser4857 ( 79838 Chips )
Seat 4: sergg ( 45724 Chips )
Seat 5: Masic1 ( 104454 Chips )
Seat 6: msdebbie ( 123273 Chips )
Seat 7: armagedon_ ( 130333 Chips )
Seat 8: KevinB1 ( 108311 Chips )
Seat 9: Brook12 ( 62194 Chips )
Seat 10: gonebad ( 28403 Chips )
Blackstongal: posts ante [ 300 Chips]
ODPB: posts ante [ 300 Chips]
cruiser4857: posts ante [ 300 Chips]
sergg: posts ante [ 300 Chips]
Masic1: posts ante [ 300 Chips]
msdebbie: posts ante [ 300 Chips]
armagedon_: posts ante [ 300 Chips]
KevinB1: posts ante [ 300 Chips]
Brook12: posts ante [ 300 Chips]
gonebad: posts ante [ 300 Chips]
msdebbie: posts small blind [ 1,500 Chips]
armagedon_: posts big blind [ 3000 Chips]
** Dealing down cards **
Dealt to ODPB
KevinB1 folds
Brook12 calls [ 3,000 Chips]
gonebad raises [ 28,103 Chips]
Blackstongal folds
ODPB folds
cruiser4857 folds
sergg folds
Masic1 folds
msdebbie folds
armagedon_ folds
Brook12 calls [ 25,103 Chips]
** Dealing Flop **
** Dealing Turn **
** Dealing River **
Brook12 shows a straight, seven high
gonebad shows a pair of kings
Brook12 wins 63706 chips from main pot with a straight, seven high [ 7_, 6_, 5+, 4[, 3[ ]