Cheeseburger in paradise

Last night I was working late. A guy I know poked his head into the lab to see if I wanted to join him for dinner. I did. He went and got another guy and we went to a burger place near campus.

The guy I don't know all that well asked the manager what came on the western burger, and was told it came with barbecue sauce and onion rings.

Me: It sounds like it would be pretty good, except for those onion rings.

Guy: You don't like onion rings?

Me: I hate onions. They're pretty much the worst things on Earth.

Guy: Really?

Me: Yeah. I'd rather get AIDS than eat an onion.

Guy: . . .