I heard another joke about a frog:
An old fisherman is sitting by the bank of a river, when a frog hops up and says, "I'm an enchanted princess. If you kiss me, the spell will be broken, and I will turn back into a beautiful young princess and you can marry me."
The old fisherman takes the frog, puts her in his pocket and starts walking home.
"Wait a minute!" screams the frog. "Didn't you understand?! I'm an enchanted princess, and you're supposed to kiss me, so I can be a beautiful young princess again and you can marry me!"
"Yes, I understood," says the old fisherman, "but at this stage of my life, I'd rather have a talking frog."