I couldn't resist taking a photo of a pricey Town and Country with a sticker that read "W STANDS FOR WRONG."

I guess that's supposed to be a self-explanatory sort of in joke for like-thinking people, but I thought I'd improve on it a bit:

The problem is that if I put that on my car, I don't think most people would get it.

My hope would be that the really smug people would mistake it for their own sticker, and that maybe they'd smile and wave!

Then I could smile and wave back before the sticker shock set in.