DOGS!! Are you kidding?
It is well known that these practises take place and people like you give catering a bad name. I am not in the habit of badmouthing others in the trade but you spoil it for the rest of us. It is only a matter of time before you have a food safety issue and believe me you will.
Success in catering is built on trust and reputation, I wonder who your clients are and how your food is recieved. 3 seconds, 5 seconds or 180 degrees aint gonna get rid of dog hairs.