The kitchen in my office has two ways of making coffee: one is to brew a full bag of coffee using a Starbucks-provided coffee maker, and the other uses one-serving sized cups that you insert into a machine that shoots hot water through it and gives you a convenient single cup of coffee without having to make a full pot. The problem with the latter is the quality of coffee, which is poor at best. Everyone drinks the actual brewed coffee first, and it's usually gone by 11AM.
So the other day I'm yawning and feel the need for a jolt of caffeine. I walk to the kitchen and see, naturally, that the preferred coffee is gone. I then prepare one of the shitty cups of coffee and begin the unsatisfied walk back to my desk. Walking into the kitchen as I leave is an important executive. When I'm about 15 feet from the kitchen, I hear, "thanks for leaving me a cup you [expletive deleted]."
Here's the deal: I didn't drink the last cup, but this person has no way of knowing I didn't. I'm a pretty recognizable person (because I'm huge). This situation is now a pockmark on my reputation with this executive. For about 3 hours after this went down, I debated whether I should go talk to this person and let them know that I didn't drink the last cup. I was prepared to apologize for not brewing a new pot. The guilt and nervousness ate away at me for the rest of the day. It's been about a week now since it happened. I'm sure things have cooled down, but I still get an uneasy feeling from this person. I've waited too long and there's nothing I can do.