Curse of the squirrels
There were three country churches in a small Texas town: the Presbyterian church, the Methodist church and the Catholic church.
Each church was overrun with pesky squirrels. One day, the Presbyterian church called a meeting to decide what to do about the squirrels. After much prayer and consideration they determined that the squirrels were predestined to be there and they shouldn't interfere with God's divine will.
The Methodist group got together and decided that they were not in a position to harm any of God's creations. So, they humanely trapped the squirrels and set them free a few miles outside of town. Three days later, the squirrels were back.
It was only the Catholics who were able to come up with the best and most effective solution. They baptized the squirrels and registered them as members of the church. Now they only see them on Christmas and Easter.