"$50?" the woman replies. "That seems terribly expensive for a frog."

"Well, this frog is worth it. It's been trained to give blow jobs."

The woman is stunned, but because her husband loves this sort of sex, and because she is not particularly fond of it, she decides the frog might be a good investment. She buys the frog, brings it home, presents it to her husband, and explains its special value.

The husband is sceptical, but promises he'll give the frog a try that night. The woman goes to sleep happily knowing she won't be bothered by her husband that night.

She is suddenly awakened by a clatter coming from the kitchen. She goes downstairs and finds the frog and her husband pulling out pots and pans and poring over cookbooks.

"What are you two doing down here?" she asks.

Her husband responds, "If I can teach this frog to cook, you're out of here!"