Take the pseudo-complement in stride and ask if they would be interested in purchasing a print.
Non-photographers will never understand what it takes to deliver excellent photos.
I literally just got in a huge fight with my mom about this. We were in the Smithsonian Museum of Natural History and they had a whole room dedicated to a wildlife photography competition that had just ended. Really nice big prints and really great photos.
She kept saying how "lucky" these people were to get those photos. I tried to explain to her that luck has VERY little to do with it. She says about one photo "but he definitely got lucky that that wolf went just under that log at the right moment so he could get a photo of it!".
Then I tried to calmly explain how that guy had probably tracked that wolf or pack of wolves for days. Waiting and watching for just the right moment where the light came together with an incredible image. This is a guy who has honed his craft over years and knows his equipment and himself like the back of his hand and therefore had the ability to react on a moments notice to get the focus, exposure and composition just right.... and just the way he envisioned it.
Her reply: "I suppose"
People who are not serious about photography will never understand how we stand in the freezing dark for hours waiting for the sun to peek through. Or how we lug enormous amounts of gear to the tops of mountains to get the perfect shot. Or the training necessary to perfectly capture a motorcycle rider at ~200 MPh with that perfect background blur.
Yep Mom. Photographers just "get lucky" and the ones with the best gear are the only ones capable of "getting lucky"...
The best we can do is be happy that people enjoy our images and if we're ever around fellow photographers showin good photos... make sure to give them personal praise... because no one else will...
(sorry for typos, I'm on my iPhone right now! Oh and just do you don't think I'm a little kid: I'm 30 and happened to be in DC to get an award and my parents came along and we had a few extra days to do some site seeing :-)