Totally random: tonight, DW got some hard-boiled and uncooked eggs mixed up in the fridge, and wasn't sure how to figure out which was which.
I vaguely remembered there was an easy way to tell them apart. So, with DW and Beasts watching, I tried spinning them on the floor (oh great idea, play with eggs on the floor... I bet I'm going to regret that...)
It works! Hard boiled eggs can be spun like tops, and raw eggs don't.
Woot for me! (yeah, yeah, I know, both lame AND geeky)