The man at the bar takes a long look at the bottom of his pint glass and lets out heavy sigh
"What's up?" asks the barman
"My six year old son has got the 18 year old lass next door pregnant." replies the drinker
"Surely that's not possible," states the barman
"It is
Spoiler:
when the little

stuck a pin in all my condoms," replied the drinker