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That's the trouble: my direct supervisors are the partners. Officially, so they say. It's a very small company, family run. A very, very tiny company in fact. I'm hoping that if the partners aren't there again tomorrow, I can give it to the office manager, because otherwise, why have one? I just don't want to cause any upset really; I'd like it to be as clean and smooth as possible.
I may sound paranoid, but I've seen the reactions when other people have handed in their notices: not good.