Duck goes into pub and says "Any bread?"
Barman says "This is a pub, we don't sell bread."
Duck comes back an hour later and says "Any bread?"
Barman says "I told you before, we don't sell bread."
Duck comes back an hour later and says "Any bread?"
Barman says "If you come back in here I'll nail your feet to the bar."
Duck comes back an hour later and says "Any nails?"
Barman says "No"
Duck says "Any chance of some bread then?"