Great point! I have learned as well that if you give some of them a glimpse, a smile or some type of the slightest bit of a conversation, they will start to work on you and know they have a listening ear. Some just want to be friendly and nice but you don't know which ones will blow up on the first close call etc. etc. I try to polite and respectful to everyone without displaying a chip on my shoulder. I do need to smile more though.
