A bloke wins the lottery and decides to buy himself a Harley

A bloke wins the lottery and decides to buy himself a Harley
Davidson, he goes down to his local bike shop and after
purchasing a top of the range bike, the owner of the shop
tells him to coat the bike in Vaseline every time it looks
like raining. That night he goes and picks his girlfriend up
on his new toy and heads over to her parents house for the
first time. As they arrive there, she explains to him that
whenever they have dinner, don't talk.
"If you talk," she tells him, "you have to do the pots."
The man is astounded as he walks into the house as it is a
complete mess. Anyway, the family all sit down for dinner
not saying a word. The man decides to take advantage of the
situation by groping his girlfriend's tits, yet there is
not a sound from anyone.
So he decides to shag his bird on the table, and still there
is not a word. He then proceeds to do his girlfriend's mum
over the table, but still, amazingly, there's not a word
from anyone. Just at that moment he notices the rain on the
kitchen window and remembers his precious motorbike, so he
reaches into his pocket and flops the Vaseline out.
At which point his girlfriend's dad leaps up and shouts,
"Okay! Okay! I'll do the fucking pots!"