Heres one. It's quite dirty so I'll Spoiler it
A group of lads are in a bar drinking when a man comes up to them and says
"I ****ed your mum last night" to one of the lads. The lads ignore him and carry on drinking. Later on in the night the man walks over to them again and says to the same lad
"Im going to **** your mum tonight aswell"
The lads once again ignore him and carry on. Even later on the man comes to them for the third time but the lad interupts him and says
"C'mon dad this is getting silly, you're drunk!"