One lunch time a man walked into a pub and said to the barman "Pint of beer and a ham sandwich please."

So the barman gave him his order. He then drank the pint of beer, put
the ham sandwich on his head, and walked out. Meanwhile, two locals sat in the corner had noticed the whole thing and found it very strange.

"Did you see that??!" one local asked the other

"Yeah, how wierd, oh well!" the other replied

As the day went on they forgot this wierd event and carried on as
normal. But the next day the same man walked in, ordered the same
thing, drank the pint, put the sandwich on his head and walked out.

Again, the locals in the corner noticed the whole thing.

"Did you see that?" one asked the other.

"Yeah i know, what a wierd bloke" the other replied

"Tell you what" one said "next time he comes in here I
dare you to go and ask him why he does that"

"All right, you're on" the other answered.

So, the next day the same man came in and ordered the same thing.

"Sorry mate" said the barman "we're out of ham sandwiches"

"Oh ok" said the wierd bloke, "I'll have a packet of crisps instead then
please."

The bloke got his order, drank his pint of beer, put the crisps on his
head and started to walk out. Just as he reached the door he was stopped by one of the locals in the corner.

"wait! wait!" he said "sorry mate, I hope you don't mind me asking you this, but why on earth have you got a packet of crisps on your head?"

"Isn't it obvious??" the wierd bloke answered. "They were out of ham sandwiches."