Silverfish.

I've found some silverfish in my apt. recently:

1) I was eating dinner late at night and one started slowly moving down the wall in my dining room...

I went to whack it, but it fell off and scurried behind a pile of books.

2) The other day I was drawing a bath, went to go do something, and came back, and when I came back, the bath was half-full, and there was a silverfish sitting on top of the water.

I got some scrap paper from my wastebasket and scooped it out, and it seemed to have been dead from the hot water.

I crushed it between the paper just to make sure, and it made a wet squish rather than a crisp one like they usually do when you crush them.  I think the water boiled it.