To this end I have a bag filled with tiny balls that I microwave and it stays warm for a good half hour. Shove it down the back of my pants and work standing up. Did this this morning.
I'm stood here a few minutes ago and I hear something drop to the floor. Look around, can't see anything. Then a here a few things dop on the floor. I pull the bag out of my pants and bugger me, there's a hole in it.
Cue me picking up these tiny balls of whatever they are off the floor, then, to my horror I feel foreign objects down my arse crack. Yes, a fair few of these little ball things were residing in my now pleasantly warm natal cleft, requiring some careful extraction. Nice.

