Infuriating

Hands like this infuriate me. Makes me want to bash the keyboard. It wouldn't be so bad if the flush had been hit, but the runner-runner straight is a 20/1 shot.

PL Texas Hold'em 6 Buy-in Trny:28451345 Level:1 Blinds(20/40) - Friday, September 08, 09:58:25 ET 2006
Table Table 112093 (Real Money)
Seat 4 is the button
Total number of players : 10
Seat 5: athlete208 ( 1593 )
Seat 6: RumTiddle ( 1960 )
Seat 4: luckeybob ( 1880 )
Seat 3: pandol ( 1473 )
Seat 1: square4x4 ( 3320 )
Seat 8: tom41 ( 1960 )
Seat 2: Tomcat290 ( 3380 )
Seat 9: bdsbnkrll ( 1980 )
Seat 10: mark1961222 ( 374 )
Seat 7: dinero_mucho ( 2080 )
Trny:28451345 Level:1
Blinds(20/40)
** Dealing down cards **
Dealt to RumTiddle [ 5h Ad ]
dinero_mucho calls [40].
tom41 folds.
bdsbnkrll folds.
mark1961222 folds.
square4x4 calls [40].
Tomcat290 calls [40].
pandol calls [40].
luckeybob folds.
athlete208 folds.
RumTiddle checks.
** Dealing Flop ** [ 5d, Kh, Ah ]
RumTiddle bets [40].
dinero_mucho calls [40].
square4x4 calls [40].
Tomcat290 calls [40].
pandol calls [40].
** Dealing Turn ** [ 4c ]
RumTiddle bets [200].
dinero_mucho folds.
square4x4 calls [200].
Tomcat290 calls [200].
pandol folds.
** Dealing River ** [ 3h ]
RumTiddle checks.
square4x4 checks.
Tomcat290 bets [300].
RumTiddle calls [300].
square4x4 folds.
Tomcat290 shows [ 7d, 6d ] a straight, three to seven.
RumTiddle shows [ 5h, Ad ] two pairs, aces and fives.
Tomcat290 wins 1620 chips from the main pot with a straight, three to seven.