As a civilized customer ,everybody should be consious about your behavior and speaking manner .I am an online service provider of a eyeglass online shop,I have to provide service from 8am to 00:00pm no time to have a break,everyday I`m worn out,what worse,sometimes I have to do with a few bad manner customers ,that makes me crazy and sad ,but I should not show any anger towards them.Here I hope all the people to be polite when they shop online.Thanks!