What is discourteous?

How can one check to see if new movers have a good reputation? What is the proper salutation for Dr Vincent Bertram Ed D? How much do waiters make in tips a day? What should you say to your sister-in-law about not acknowledging the loss of your brother? When is an exclamation mark used? Why is the feminine of mister is miss or misses but not sister? What is a trend and how frequent does something have to occur to be a trend? How long should a family member stay in your home when on vacation? Why is it important to preserve dignity? What does he acts like a mad dog mean? What is the adverb of benevolence? Why do people wear expensive clothes? What is the meaning of the phrase Its not what you know today but who you know? What country is the term bloke used as slang? How much should I tip for a grocery service? What is the correct saying mom or mum? What is the proper salutation for a father and daughter with the same last name? Can you ware a skirt with tights and flats? This is a command or a direct order? Are Chinese people mean?