For his 60th birthday, a man received a gift certificate from his wife. The certificate paid for a visit to an elderly medicine man living on a nearby reservation, who was rumored to have the absolute cure for erectile dysfunction.
After being persuaded, he drove to the reservation, handed his certificate to the medicine man and wondered what type of hokey pokey was in store. The medicine man told him, "When you take this, say 1-2-3 & you will be ready."
As the man walked away, miracle in hand, he asked, "How do I stop this from working?"
"Your partner must say "1-2-3-4". When she does, the medicine will not work again until the next full moon"he replied.
The man was very eager to see if the stuff worked so he went home, showered, shaved, doused himself in cologne & took a spoonful of the miracle medicine, then called his wife into the bedroom.
When his wife came in, he said, "1-2-3!" Immediately, he was the manliest of men. His wife was excited and began ripping off her clothes, when she suddenly asked, "What was the 1-2-3 for ?"
Which is why it is improper to end a sentence with a preposition, because you could find yourself with a dangling participle.