Left some water bottles in my car overnight last night and I thought they would be frozen when I got them out this morning, but they weren't. Then I got excited because I thought they were supercooled and would turn into ice when jostled, so I slammed one down on the kitchen counter, but nothing happened. Disappointed, I opened it to drink and that's when it froze.

So I took a little video of another one because it always makes me happy to see.