Asking to see mucked hands

[iversonian]

I was playing at Commerce a few weeks ago, 2-3 NL. I called a river raise with ace high and lost. A player not involved in the hand asked the dealer to turn over my hand. And then I just went off on him. Didn't raise my voice or anything, just started to lecture him.

Now, I have no problem with emotional control. However, after the 99999th time having these lowbrows ask to see a mucked hand, I snapped. The kicker is, the guy next to him (who I lost the pot to), when asked to confirm if what he did was permitted by the rules, said, "Sure, you want to find out how he plays."

I've often thought about retaliating in these situations by asking the dealer to turn over every hand he shows down, but never actually done it, as I'm not the confrontational type.

How high do I need to play before people stop doing that on a regular (hourly or so) basis? Are there any poker rooms that require a legitimate reason to ask to see a mucked hand?