Because they had a young daughter in the house, a couple decided they would have to have a form of code that the man could use when he wanted sex.
They decided that the man would ask,
'Darling, can I use your sewing machine?'
The wife would say yes of course I will show you how to use it and then they would go upstairs for a bit of rumpy pumpy.
However, one night the wife didn't feel like it so she refused him and he went upstairs in a huff.
After a while, the wife felt quite guilty so she said to the child.
'Go and tell Daddy he can use my sewing machine now.'
The child went upstairs and repeated what her Mummy had said to which her
Daddy replied.
'Go tell your mother she's too late,
I've done it by hand!'