Paddy walked into his local pub and said "free drinks all round, my wife just gave birth to our first - a baby boy!"

"Congratulations" cried the mates in the bar "what have you called him, and what did he weigh?"

"Well, we named him Patrick, after meself, and he weighed 24 pounds!"

"Twenty four pounds - that is one big baby! Congratulations to you and the missus!"

Couple of days later Paddy was back in the pub, his mates asked after his missus, and the baby - "so, Paddy, how is the baby, and what does he weigh now?"

"21 pounds" was the proud answer.

"Oh, has the poor little fella not been well - losing weight?"

"Oh, no, we had him circumcised!!"