Personally Boundaries

There's an article on Yahoo about when to hug, and when not to hug co-workers. Personally I'm a very 'touchy feely' type person, but I have to say I draw the line at hugging co-workers. I may pat someone on the back, or something for a job well done, but I just don't see the need for hugging anyone that isn't in my 'personal space' as a rule. If you're hugging someone that you aren't intimate with personally I think you have over-stepped your bounds no matter where you are, work or otherwise.