Whats the dummest thing a non biker has asked you?

[ChristoT]

"Is it diesel or petrol?"

(Or when I had my Varadero 125):
"Is that a 400, mate?" Oh how I laughed.  :lol :lol

Or even the old favourite:

Them: "What bike is that?"
Me: "A Fazer 600"
Them: "Oh, cool - what size engine does it have? Bigger or smaller than an R1?"
Me: Facepalm.