A seventy-five year old man is complaining about his legs aching, so
his wife finally convinces him to go see a doctor.
The doctor checks out the old man and says, "I don't see anything
seriously wrong, but you could use some exercise. I suggest you walk
5 miles a day. Start doing it, call me 10 days from now, and let me
know how you feel." The geezer agrees to try this advice.
Ten days later, the old guy phones the doctor. "How are you doing?"
the doctor asks.
"Well, I've been doing it; I've been walking 5 miles a day," the man
replies.
"So, it's going well?" the doctor asks.
"How the hell should I know!" the man screams. "I'm 50 miles from
home, and I'm totally lost!"