Usually no but only because I don't have time to think about it when I've been given out.
I'm usually given out well before I think of it and I usually get out other ways anyway!
If the fielder says he caught it in a dubious catch situation, I tend to believe them and if I'm sure I'm out, I walk. Anyway, I'm a bowler so I'm not too precious about batting anyway.
A perfect example of what I'm talking about:
In a match for Uni, I walked out with my shiny new 3lbs 5oz bat (2oz heavier than Lance Klusener's). I decided it had been a bit boring so I figured the time was right to boost the scoring rate a little.
The first ball this leggie bowled full on legstump and I tried to flick it over square leg for a couple of runs or maybe a boundary and watched in stunned amazement as the ball rocketed off the middle of the bat and ended up in the river next to the ground.
Second ball, full on middle and leg and I swept at it without trying to belt it and it landed 20m over the boundary.
Resisting the compulsion to kiss my new bat, the third ball was full and slow outside off-stump and I went for it and drove it well over the fence at long-off.
Resisting again the urge to thank heaven above for this new God-like ability to hit 6's thanks to the new bat, the fourth ball was short outside off, spinning away. I literally just swung at it as hard as I could and it soared over cover for 6 more.
By now my team-mates were cheering me on and screaming "SIX! SIX! SIX! SIX! SIX!" so on the 5th ball, I went for the mightiest across-the-line swipe of all time,missed by at least a metre and was bowled middle-peg. Ever see your team-mates rolling around on the ground laughing as you trudge off the ground having been bowled middle-peg?
I told you I didn't get out caught behind much.
Sorry for hijacking your thread Suil.