Answer:
It's anything but amusing when this body part gets hit.
Die without me, never thank me. Walk right through me, never feel me. Always watching, never speaking. Always lurking, never seen.
Who spends the day at the window, goes to the table for meals. And hides at night?
There is someone, and there is always another, for without the other, there wouldn't be one
Runs over fields and woods all day. Under the bed at night sits not alone, With long tongue hanging out, Resting at your feet until we go for a walk
I am owned by Old McDonald.