Because the sea weed
or
What's the use, they'd still have bear feet
or
Three. One to climb the ladder while the second kicks the ladder out from under her. And the third to say, "I knew that was too high for you dear."
or
Twenty. One to hold the bulb, two to turn the ladder, and 17 to be on the guest list.
or
I said, "I've been on telly but I'm no Dean Martin".
or
There are footprints in the butter.
or