Is it just me or if you put kids and duct tape together they're inevitably going to try to tape each others' mouths shut (at the very least)? I know on the rare occasion we managed to get a hold of duct tape, or any kind of tape stronger than Scotch tape for that matter, somebody's mouth always ended up taped if just for a few seconds, and on at least a few occasions would try to tape their hands or tape them to a chair or something (and unfortunately, always failed that I remember). I myself had my mouth taped a few times by someone.
It's just something I've noticed. Kids + duct tape = using it on each other.