I'm not married. I don't have a mother-in-law. But I liked this joke nonetheless:

A guy goes on vacation to the Holy Land with his
wife and mother-in-law.

The mother-in-law dies.

They go to an undertaker who explains that they
can ship the body home but that it'll cost over $5000,
whereas they can bury her in the Holy Land for only
$150.

The guy says, "We'll ship her home."

The undertaker asks, "Are you sure? That's an
awfully big expense and we can do a very nice burial
here."

The guy says, "Look, 2000 years ago they buried a
guy here and three days later he rose from the dead.
I just can't take that chance."