A monkey. (p.s. I have a wonderful, terrible love for bad jokes)
Please let me know... I have a terrible sense of humor!
One starts with B and the otber starts with D
A monkey. What key opens a carrot? A donkey.
Tom Cruise
A friar? A chip monk?
It's a habit.
Because dogs can't operate MRI machines, but catscan.
With a monk key.