+1 reps for this thread.
I haven't had to deal with that exactly, but I have had another employee try to pull that stuff. She would do things like: try to get people to do her work for her, insist that she owned certain pieces of company property just because she had been assigned to use it from time to time, and talk down to anyone that looked like an easy target. The real twist is she was on the absolute bottom rung at a McDonald's and, even by their low standards, she was basically considered the village idiot. They only kept her around because she was good at kissing ass with some of the equally useless regulars.
The last time she tried talking down to me I called her on it and she completely lost her mind in full view of a bunch of customers. She shook sleeves of cup lids at me while sort of growling. When that didn't work she tried it again, closer and closer until she was shaking cup lids on either side of my head. I just stared her down. Apparently management didn't like the show she put on for all those customers, because the next time I saw her she couldn't get out of my way fast enough and there were sorrys and thank yous all over the place.