Little Johnny's preschool class went on a field trip to the fire station. The fireman giving the presentation held up a smoke detector and asked: "Does anyone know what this is?"
Little Johnny's hand shot up and he said: "That's how Mommy knows supper is ready!"
A couple went to a sex therapist to try and improve their sex live. After hearing the couple's complaints, the therapist suggested they experiment a little more. "For example," he suggested, "You might try different positions, like the wheelbarrow. You lift her legs, penetrate, and off you go."
The eager husband was all for trying this new idea as soon as they got home.
"Well, OK," the hesitant wife agreed, "But on two conditions. First if it hurts, you'll stop right away, and second," she insisted, "You must promise we won't go past my mother's."