Here's an example in action. No flush or straight, but an obvious scare card came out (in a situation where it wouldn't surprise me if he had trips). I went with the mirror bet here instead of the check-raise because it's more likely he would have a set in this hand, than that he would make a flush on a three suited board.

***** Hand History for Game 1609280668 *****
$50 NL Hold'em - Friday, February 18, 09:59:44 EDT 2005
Table Play ball (Real Money)
Seat 8 is the button
Total number of players : 10
Seat 1: Holloutis52 ( $63.05 )
Seat 2: innitm8 ( $50 )
Seat 3: LayDownRocks ( $298.9 )
Seat 4: midnight234 ( $51 )
Seat 5: hg212017 ( $57.5 )
Seat 6: tmh2000beh ( $35.5 )
Seat 7: McATM ( $56.8 )
Seat 8: SS02man ( $55.8 )
Seat 9: Valdinsbro ( $49.45 )
Seat 10: stressball10 ( $50 )
Valdinsbro posts small blind [$0.5].
stressball10 posts big blind [$1].
** Dealing down cards **
Dealt to stressball10 [ Kh Jc ]
Holloutis52 calls [$1].
LayDownRocks folds.
midnight234 folds.
>You have options at Table 14185 (6 max) Table!.
hg212017 folds.
tmh2000beh folds.
McATM folds.
SS02man folds.
Valdinsbro folds.
stressball10 checks.
** Dealing Flop ** [ 7s, Kd, Qd ]
stressball10 bets [$2].
Holloutis52 calls [$2].
** Dealing Turn ** [ Qc ]
stressball10 bets [$2].
Holloutis52 folds.
stressball10 does not show cards.
stressball10 wins $8.2