Its such a sad situation. I know you're caught: if you call animal control, he'll know it was you. If you continue feeding him he could try to go after you legally.

I'd push the envelope if it was me caught in the same siutuation. To me it would be WAR.... he's mistreating them and I'm trying to help them. You're not one to back down so don't. If he takes legal action, get the media involved. The news stations would LOVE a human interest story about the cat loving woman fighting the moronic egotistical male dentist.