Double belly buster

Here's another type of play that really annoys me. Why on earth SB calls my all-in is totally beyond me.

Game #1827187473: Hold'em NL (15/30) - 2006/03/10 - 15:27:03 (BST)
Table "STT 2103626 - 1" Seat 4 is the button.
Seat 1: Andy16 (842 in chips)
Seat 2: Micka1112 (940 in chips)
Seat 3: Bwa1664 (1270 in chips)
Seat 4: Godorgo (805 in chips)
Seat 5: Ollay1 (1097 in chips)
Seat 6: RumTiddle (925 in chips)
Seat 8: kolp (910 in chips)
Seat 9: __azo__ (2098 in chips)
Seat 10: Dazler001 (1113 in chips)
Ollay1: posts small blind 15
RumTiddle: posts big blind 30
----- HOLE CARDS -----
dealt to RumTiddle [Qd Qc]
kolp: calls 30
__azo__: folds
Dazler001: calls 30
Andy16: calls 30
Micka1112: folds
Bwa1664: folds
Godorgo: calls 30
Ollay1: calls 15
RumTiddle: raises to 150
kolp: folds
Dazler001: folds
Andy16: folds
Godorgo: folds
Ollay1: calls 120
----- FLOP ----- [Td 9h 3s]
Ollay1: checks
RumTiddle: bets 775 and is all-in
Ollay1: calls 775
----- TURN ----- [Td 9h 3s][8s]
----- RIVER ----- [Td 9h 3s 8s][2h]
----- SHOW DOWN -----
RumTiddle: shows [Qd Qc] (A Pair of Queens, Ten high)
Ollay1: shows [Jd Qs] (A Straight, Queen high)
Ollay1 collects 1970 from Main pot
----- SUMMARY -----
Total pot 1970 Main pot 1970 Rake 0
Board [Td 9h 3s 8s 2h]
Seat 1: Andy16 folded before Flop (didn't bet)
Seat 2: Micka1112 folded before Flop (didn't bet)
Seat 3: Bwa1664 folded before Flop (didn't bet)
Seat 4: Godorgo (button) folded before Flop (didn't bet)
Seat 5: Ollay1 (small blind) showed [Jd Qs] and won (1970) with A Straight, Queen high
Seat 6: RumTiddle (big blind) showed [Qd Qc] and lost
Seat 8: kolp folded before Flop (didn't bet)
Seat 9: __azo__ folded before Flop (didn't bet)
Seat 10: Dazler001 folded before Flop (didn't bet)