“It’s a conflict of interest, because I’m not interested.”

“I’m on a government watch list. But I’m not interested, because government watches only work twenty minutes out of every hour.”

“I’m a neat person (interesting), but I’m not a neat person (organized).”

“I’m interested in women as a whole, not simply as three holes.”

“I keep butter in my underwear, because it’s like a meat locker down there. Can I interest you in two rolls of bread?”

“I’m a door-to-door salesman. I sell doors. If I can’t knock on yours, because you don’t have a door to knock on, I know you’ll be interested in what I’m selling.”

“I bought you a gift. It’s something I’ve always wanted, but I’m not quite sure you’ll like it. So if you don’t want it just tell me and I’ll be happy to keep it. After all, I’m only interested in making you happy. 
”