[skimbell]

I'd photograph the first wedding event that I was asked to do. After that, "word of mouth" referrals would almost certainly assure that I would never be asked to do another.

[usconservative]

Only after you were sued for damages, non-performance and emotional distress.

You'd be far better off telling any gay couple that you need to check your bookings first, then politely turn them down claiming you're booked solid.