Because when someone is nice enough to feed me, spend time with me, brush my hair, vacuum my bed et al, I DON'T SPEND THE DAY DOING THE EXACT THING THEY ASKED ME NOT TO DO LIKE BARKING MY HEAD OFF AT THE NEIGHBORS.
OR DIGGING IN THE YARD.
OR LICKING THE COUCH.
Ew, who licks a couch anyway? What could possibly be gained from that? Unless it was a flavored couch... like hot and sour soup flavor. But I digress.