You Might Be Getting Old If.........?

A salesman was in today, and followed me to my office. We were at the back of the store, the office is at the front, then up two flights of stairs. He finally came trudging up, and said "man, you just zipped up here. That'll make an old man out of you." I told him to follow me around, and it will keep him young. He asked just how old I was. I'm 59, he is 49. Young un's have a problem keeping up with this "old man".