A plumber at a pub is telling his pal a story: "You know mate last week I've been in prison and as soon as I went in I remembered what everyone used to suggest to people getting in jail for the first time, therefore I looked for the biggest one in there and I beat the shit out of her! Thank god it was a women's prison". His mate clearly confused "Women...?". The plumber: "Yes, they called me to fix a leaking sink"