the barman says "Oi - get out! We don't want your type in here"
or
Because pepper makes them sneeze
or
None, because people who glow in the dark don't need light bulbs.
Note: Topical to the Chernobyl Reactor disaster of 1984.
or
It said Nah, I'm traveling light.
or
By hunting and killing their own hair piece.
or
Greece!
or
Aye, Aye, Arr and the Seven C's
or