Aww that's sad, as much as I don't really like dogs all that well, it still makes me feel bad to see any animal in that sort of condition, I couldn't be a vet or work at an animal shelter AT ALL. And no, I'm not some PETA loon or a member of ALF...in fact I despise those organizations...I just have a soft place for animals I guess.
Sorry to be off topic, but I admire someone who works to help animals, I myself just couldn't stomach that. Not due to the gore or blood or anything, but the fact that you see them suffer, often due to elements beyond their control and they just don't UNDERSTAND why they are hurting. Plus euthanizing animals wouldn't be my cup of joe either lol.