I went out to weed the vegetable garden, and it was all frozen and unweedable. I'm pretty sure the good-housemate response to this is not, "Cool! I wonder if I can make an exploding pingo?1" and run and get the hose, is it? :) Even though I'm pretty sure if the vegetable garden exploded, there'd be no more weeds in it...
[1] An arctic hill created by some really neat permafrost interactions. They often grow a meter or two taller each year, like ice volcanos. Sometimes they explode.