SYDNEY (Reuters) – Manners maketh the businessman, with a global survey finding Americans and Britons to be the most easily insulted by lack of workplace etiquette, while Australians are among the most offensive. The survey, by Australian-based international office space provider Servcorp, listed the top five most offensive workplace behaviors as not saying hello or good morning, not offering office guests a beverage, speaking loudly across the room, using swear words and taking calls on mobile phones.