A young man presents his fiancee to his parents.
At the table, the girl needs to have a fart.
After a couple of minutes they can feel a smell…
The father of the boy says: “Rex… !”
Happy that her future father-in-law blamed the dog under her chair, the girl relaxes.
After a while she gives another and the future father-in-law says very angry: “Rex, be careful…”
With a very big relief, the girl farts again.
The future father-in-law says:”Rex! Get out of there she’ll shit on you!”
This joke is included in the Black Book of Jokes. You can order it from here.