in a game of savage worlds a couple of months back, the players (including me) were part of an entourage of some earl or something (the campaign was set in 17th century vienna) who was like 13 or something. we got jumped by highwaymen on the road to vienna and suffice to say the earl was a little pissed off. when we got to our accomodation, some count's estate, the earl wanted a hot bath run. the exchange went thus:
GM: so the earl orders his bath and several minutes later, there's maids bringing in this copper tub into his room, filling it up with hot water and also helping him undress
Me: (under my breath in character but out loud to the players) poor kid, he hasn't hit puberty yet, there's no way he can truly appreciate this...
the next couple of minutes were just spent laughing, with one guy's shoulders going like a jackhammer XD
i also suggested, in a more recent game of traveller that to get inside this briefcase containing orders that could only be opened by the captain and the recently murdered navigation officer's dna patterns "could we not just cut off the guy's hand and have the computer read the dna off that?"