Taking that a step further: it is like an exterminator going around different of restaurants, then crawling under customer's tables while they are eating, sayin

Taking that a step further: it is like an exterminator going around different of restaurants, then crawling under customer's tables while they are eating, saying, "Don't mind me, just looking from rat droppings." A more legit exterminator would agree to come past while the customers were not there.