On my first night at the job I'm at now, the RN training me was taking me around introducing me to various staff members. One female member of the security staff said "Oh, we hug here." I am not much of a hugger, especially with people I don't know well. And I said (as she was hugging me) "I'm not much of a hugger." And she laughed like I was joking. Over the next year, I tolerated it some, hid from her some, reminded her that not everyone wanted to be hugged and it all fell on deaf ears.
One night in the ER, I saw her hug another RN and that nurse said, "I don't like that." And the hugger laughed and said, "You're so funny." People all over the hospital were talking about her and how she was inappropriately touching the staff. I wasn't the only one who would hide when I saw her coming.
One day, I was sitting at the nurses station, talking on the phone the the CMO about an issue we were having and she came up behind me and hugged me from behind. It was the last straw for me. I went right to her supervisor and reported it. She was put on probation, but couldn't help herself and a few weeks later she was fired.
The moral is, some people don't get the hint.