Banta tripped on the stairs and broke his leg. The doctor put a cast on it and warned that he wasn't to use the stairs until the cast came off.
The weeks later he removed the cast and pronounced him well on the way to recovery.
"Oh good," Banta responded. "Is it all right for me to walk the stairs now?"
"Yes," said the doctor, "if you promise to be careful."
"I can't tell you what a relief it will be," he sighed. "It was such a nuisance crawling outside and shinnying up and down that drainpipe all the time!"