shamelessly stolen from somewhere:
An Irish woman of advanced age visited her physician to ask his help in
reviving her husband's libido.
"What about trying Viagra" asked the doctor?
"Not a chance" she said. "He won't even take an aspirin."
"Not a problem," replied the doctor. "Drop it into his coffee. He won't
even taste it. Give it try and call me in a week to let me know how
It wasn't a week later that she called the doctor, who directly
inquired as to the progress.