I have a service dog. He is literally my full time partner. I ALWAYS pick up after my dog. He doesn't even go to the bathroom without checking with me first to see if the timing works with my needs. Active service dogs are not destructive. They are better behaved than well behaved toddlers. Unless I remove his jacket, he is always on duty. They have papers usually tucked away into their vest though people do not ask to see my assistants papers. For the record, the only time I leave without him is if I am working outside in 100+ temperatures in the south for long periods of time.