http://www.guy-sports...ther_in_law_jokes.htm squarebear.
My favourite is this one - and, no doubt, this will get the religious critics going:
A man, his wife and his mother-in-law went on vacation to the Holy Land. While they were there, the mother-in-law passed away.
The undertaker told them, 'You can have her shipped home for £5,000, or you can bury her here in the Holy Land for £150.'
The man thought about it and told him he would just have her shipped home.
The undertaker asked, 'Why would you spend £5,000 to ship your mother-in-law home, when it would be wonderful to have her buried here and spend only £150?'
The man replied, 'a man died here 2,000 years ago, was buried here, and three days later he rose from the dead. I just can't take that chance.'