A watchdog.
Because they strongly dislike vacuums.
Shall we walk home or take a dog
Tyrone, Tyrone, Tyrone, Tyrone, and Tyrone. How did she tell them apart She called them by their last names!
The joke is it's own pun-ishment.
Juan nail at a time.
I am always on time." "And your biggest weakness " "I get annoyed when my dealer is late."
Because he's the watchdog and he has to wind himself up.
A terrified postman.