I work with a male colleague at a charter school, one who has been making me feel uncomfortable, but I don't know how to address it.

Last week, I was helping some teachers decorate their classrooms for open house. I was standing on a chair trying to staple one of the papers to the board and needed to move over to continue (to go horizontally - if you can picture that).

This male teacher said he'd help me move, but without my consent, he helped me move and put his arms around my legs to move me and the chair to keep from falling.

I felt really uncomfortable and left shortly after. One of my female colleagues saw it and asked if I was okay. Especially since we had a presentation earlier that day about sexual harassment. He is married with a kid, and I have a boyfriend.

He's touched my hand, thigh, and shoulder before on separate occassions. But I never said anything. It's gotten to the point that I feel like I can't be in the same room.

Last summer, while I was out with my boyfriend, this male colleague called me at an odd hour. I thought it was an emergency, but he had called me to invite me over to 'hang out' while his wife was away on work. My boyfriend was upset, and told me to be careful and that it was inappropriate and basically a big WTF! I never accept any invitation from him, and will never do so. I don't think I will mention this occurence, but the touching, I will have to say something.

Basically... would this warrant reporting to my boss, or should I speak to this male colleague first? I am scared of confrontation, but I don't want him to touch me anymore, in any way.