[dandt]

Although not the case around here, we have certainly been to many restaurants where the tip/service charge is automatically figured in. I don't like it, but it certainly does not strike me as unusual -- except, granted, in The Villages.
A $1- error is a possibility too!
And not looking you straight in the eye is, in some cultures, a form of politeness, quite different from what we may be used to, but not necessarily a rudeness at all.