if im in a ffa i will usually kill a frozen opponent (because every frag-point counts), or stick him with rox in his bum haha
if im playing a 1on1 with a friend, or if its not a "ruthless" match, i usually tag em a few times with my shotgun to let him know im there, but i will have mercy, let him live and just walk away
afterwards, people are very appreciative and grateful of this
...fuzz you are one funny guy
when i hit either one of these traps i usually slam the desk with my fist and scream the F word lol, esp. if i had good health/armor or lost a good rune like jack or 2x damage.
on the other hand you have to be cautious yourself, and you can also set these around corners or at tele's
it also makes the noobs happy to get a few frags, so it's all part of the game, im with them staying, sorry toyo.
-T.