It's time for you to stop worrying about your job and about what might happen "if. " that dreaded "if" isn't going to happen. Even if your dealings with a certain higher-up have been less than amicable, you'll be able to smooth things over nicely next week. Show up a couple of minutes early, ask for five minutes, and have a nice chat. Bet you'll end up even better off professionally and personally speaking than you were before.