Both these are true.
An elderly woman (well advanced in years) went to the doctor with a complaint about a sore knee.
The doctor told her that it was down to old age, wear and tear etc.
"The other knee is the same age and I have no problem with that one" came the reply.
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A farmer went to a solicitor for some advice. Later when he had received the bill he went back into the solicitor's office and told the receptionist that he would not be paying it. When the receptionist asked why he would not be paying it, he replied
"I didn't take the advice"