I can't walk as fast as I used to

72-year-old man. His complaint?

"I can't walk as fast as I used to."

Are you having trouble breathing? No.
Any pain? No.
Any limitations on how far you can walk? No.
So it's just the speed that you're walking? Yes.

"And what would you like us to do?"

"I don't know. You're the doctor. Make me fast again."

"This is part of the aging process, unfortunately."

"There's no surgery?"

"Surgery on what?"

"I don't know, my legs?"

"No."

"Well, you're going to admit me, right?"

"No. Unless there's something you're not telling me, there's no reason you need to be in the hospital. There's nothing wrong with you."

"Tell that to my wife."

"Where is she?"

"She's right here."

"Sir, there's no one else here."

"Did I mention I've been seeing things that aren't really there?"

"No.........."