My family always used to process deer as it is manageable. With elk though, alot more meat and work. I took my last to a processor, and now after thawing and before cooking have to look for hair. I mean hell, I pay someone to do something I can do myself and they can't even take the time to remove the hair! I will not use that processor again.
Deer crap though? I don't even think I've seen many field dressing to get it on the deer... let alone a processor getting it in the meat!