Originally Posted by JK Ferret 
And there's nothing wrong with TJ. At least, it's not unusual...
Patient: 'Doctor, I can't stop singing 'The green, green grass of home'.'
Doctor: 'That sounds like Tom Jones syndrome....'
Patient: 'Is it common?'
Doctor: 'No, but it does give you AIDS'
Patient: 'Aww, I was expecting you to do the 'its not unusual' joke'
Docotor: 'Nope. Its going to give you AIDS. Sorry about that'