You must make a lot of money!

I walk back to my laptop — the woman sitting behind me says, "You have such a beautiful screensaver! I love those photos!"
Thank you — those are mine.
"You took those!!!?"
Yes. *looking at my screen* That one's from New Mexico. That one is Redwood National Park. That one is Pacifica, CA...
"You must make a lot of money!"
*laughs* I don't make a dime. Maybe one day.