Hang in there, my DSIS who has and loves a a cat stuck one once and I know it was one of the saddest days she has ever had. She called me from her car just really really upset and DH and I went running out to meet her. It is going to take a little time for you to calm down and get passed this. I think that is normal, don't beat yourself up but let yourself feel sad. It's o.k. to be very upset as long as you eventually realize that there really was nothing that you could have done differently.