...a woman in front of your booth answers her cell phone - "Hi. I'm at the swap meet"

Granted...

Or perhaps when you hear "you have a pretty good eye for this, ..... for a man"

one person asked me, "Did you paint all these by yourself?"

yes, I have gotten that one too, more "did you make all this yourself?". I responded, "Yes, they generally require that to get in the show".

To which I often get, "Oh, you have to apply?"

People stop in front of your booth and say, "Ooooh, can I pet your dog?" Hubby has a German Shepherd that travels with us and I try to keep him behind the booth, but dogs r dogs...

Or "My sister does this -- do you mind if I take a picture so she can make one for me?"

An older lady selected a large amethyst solid 14K gold ring. When she asked how much, I answered, "Three fifty". She said "Wrap it up for me". So I put it in a ring box and as I wrote up the receipt to my surprise she handed me three ones and two quarters.

HA! I'll be she was more surprised than you....
It's amazing we can keep our sanity during these events.

You come home and the door is locked because your wife found out you're having an affair with another artist.

By the way, I'm the wife.

A crew from "60 Minutes" shows up at the show to talk to the promoter.

Rally? What show was that?

...you hear a passerby sy "they have too much art s**t here

been there and hears that...mine was "hey...ya gotta get down here...they gotta flea market with really neat stuff".

At least they said the stuff was really neat.

Two women talking in my booth at the Chicago Old Town Art Fair, One says to the other, "I come to the Old Town Art Fair to look at all the great expensive art and then go over to the Wells Street Art Fair to buy because the work is more affordable". I managed to sell them some earrings anyway.
Jewelrymaker.

A woman came to the booth asking "do you make all this glass yourself?" I said "yes - I have a studio in my home". Then she said it must be easy then... I answered, "if it was easy, everyone would be doing it!"