I work at an animal shelter and it's such rewarding job. It feel so good to be taking care of the animals there. 
My daughter is thinking about that career track.  Is it hard though when an animal doesn't make it?
Yeah it really is, but we try our best if that is likely to minimize the pain. 
That would be the only thing that would keep me from it.  I admire those that care for our animals, so thanks to you for being you.