Re: It's not rocket surgery
Try living in Spain where most greetings with the opposite sex and sometimes with the same sex involves a kiss in each cheek. Or Russia where greetings with women are a kiss/hug and men a handshake/hug.
These things are very much cultural and the people who try to direct PC behaviour only see things from a narrow perspective.
I think a lot of the offense takers need to get out more, if they are nervous about it, I'll give them a hug.