An Apple a day...
Went to see my Doctor this week.
I told him that every time I leave my house, I have to open and shut the gate 3 times.
"I know I have a problem, but can't quite put my foot on it," I said
He replied, "Well, I can't help you with your obvious OCD problem, but the foot reference makes me laugh, you see, I'm a Podiatrist!"
I said, "That's great! Can you fix my MP3 player?"