I love this one:
“Is this only on display because you’re trying to get rid of it?”
I don’t even… we’re trying to get rid of everything. That’s what stores do.
Once in a while, I suggest a wine for someone, describe why I like it and think they will like it, only to be asked if I suggested it just because we’re trying to get rid of it. The other similar question is “have you actually had this wine?”.