"Injured Son in Law"

A forty-year-old hillbilly carried a younger hillbilly
into the doctor's office, deposited him on the
examining table, and said, "See if you can patch
him up soon. I shot up his rear end like it was
a tail on a possum. Don't hurt him none, 'cause
he's my son-in-law."

The doctor said, "Why would you shoot your
son-in-law?"

The hillbilly said, "He warn't my son-in-law when
I shot him!"