Because it saw the pillow slip.
Lay awake in bed wondering if there really is a dog.
Urine it.
Memementos
Well standard procedure is to jump 50 feet and spread over a wide area.
They thought she might have been slipped a woofie.
Slip not.
A: Realising the horse is alive and well and how much did I drink last night !
Surely you will have guessed - the brooth fairy.