A dead centipede.
First he lies on one side, then he lies on the other. Credit: Nicholas Sparks from his book 'See Me' which I am reading now.
You use a spirit level.
Because they're ugly and smell bad.
He smelt it
Because that would be "grounds" for termination!
Throw it on the ground and tamp on it.
You didn't hold down the pillow for long enough.
Because she was *airing her dirty laundry*!!!
A centipede