A woman went to the doctor for her yearly check-up. The doctor said there seemed to be a slight heart problem and advised her to take some pills for two weeks and then come back.
“Most importantly of all, don’t climb any stairs,” advised the doctor.
“But we have a two-storey house,” protested the patient.
“Well, I understand that,” the doctor said. “But it’s important that you don’t climb any stairs.”
Two weeks later, she came back and the doctor pronounced her completely healthy.
“Can I climb stairs again?” she asked.
“Of course,” answered the doctor.
“Good,” said replied, “because I was getting tired of climbing up that drainpipe every night.”