On his 74th birthday, a man got a gift certificate from his wife.
The certificate paid for a visit to a medicine man living on a nearby reservation who was rumored to have a wonderful cure for erectile dysfunction.
After being persuaded, he drove to the reservation, handed his ticket to the medicine man, and wondered what he was in for.
The old man slowly produced a potion, handed it to him, and with a grip on his shoulder warned, "This is a powerful medicine and it must be respected. You take only a teaspoonful and then say 1-2-3. When you do that, you will become more manly than you have ever been in your life and you can perform as long as you want."
The man was delighted. As he walked away, he turned and asked, "How do I stop the medicine from working after I'm satisfied?"
"Your partner must say 1-2-3-4," he responded. "When she says that, the medicine will not work again until the next full moon."
He was very eager to see if it worked so he went home, showered, shaved, took a spoonful of the medicine, and then invited his wife to join him in the bedroom.
When she came in, he took off his clothes and cried out, "1-2-3!"
Immediately, he was the most masculine of men.
His wife was excited and began throwing off her clothes and then she asked, "What was the 1-2-3 for?"
And that boys and girls, is why we should never end our sentences with a preposition… because we could end up with a dangling participle.