Ooooh, where do I start? 
There was the one who used to wank on the desks of the girls he fancied (he was caught in the act of, err, depositing, when another colleague came in early). Amazingly he didn't get sacked. Oh no. He did it to three more women before they sacked him (he wanked into the desk drawer of one of them and covered all of her stuff in jizz). He also (apparently) used to talk to his cock in the loo, according to a male colleague.
There was the one who used to walk round the window ledges, round a quadrangle, three floors up. He also used to hide in the basement, sitting on one of the large pipes near the ceiling, jump down and go "waaaaah!" and run off whenever the maintenance man appeared.
Another who used to vault over everyone's desk to get to his, at the back of an open plan office. If you got in before him, you had to duck or would get kicked in the face.
I also used to work with two men who used to try and poke me in the fanny when I was leaning over a desk (a common occurrence as there weren't enough chairs or desks for everyone). They used to shout "Gooooaaaal!" if they thought they got it in.
Oh and the one who always, always used to comment on my tits. I had had enough of him one day, was wearing a lowish top, grabbed his head and stuffed it into my cleavage, shouting, "Have a closer look, why don't you?" He didn't make any more comments...
I don't think I have worked with any really strange women.