Re; businesses getting sued... I would think they'd learn from the first few, and adjust. I think they could accomplish their objective in most cases by doing something like this:
"Sure, we'll take your money for snapping some photos of your homo "marriage", and we do excellent work. Of course, while I'm a live and let live kind of person, personally the two of you disgust me, and I'm 110% against ungodly perversions. In fact, I feel a litle nauseous right now... (making retching noises)... Ooh, jeepers, forgive me... I just threw up a little in my mouth. Now where were we? Oh yes.... I'll require 50% up front... what date were you thinking?"