One time I saw one at night RAN arcross the street at Garden city and Alderidge, I thought it was a raccon, then it stop and sort of look around and I saw it was a GIANT rat!!!!
Honestly, I don't believe there would be one restaurant in absolute 100% cleanness. As a matter of fact, depends on how "lucky" or "unlucky" we are, resulting we will see or not see those things.