As I was driving past a restaurant in Aventura, Florida looking for a parking spot, where we had plans to enjoy a wonderful lunch.  We watched as a man and his pet dog were having lunch together, to my amazement the gentleman took the cloth napkin provided by the restaurant free of charge and perhaps meant to be used strickly by Humans [I assume] and started wiping his dogs wet and drooling face not thinking about who will have the pleasure of using this specific napkin next.  Needless to say we had no desire to eat at that restaurant any longer...

[drool - saliva spilling from the mouth.
AKA - slobber, dribble, drivel, saliva, spittle, spit - a clear liquid secreted into the mouth by the salivary glands and mucous glands of the mouth; moistens the mouth and starts the digestion of starches.]

Pets and Restaurants.
Breakfast, Lunch, Dinner.