My travel coffee mug is missing from the office. I didn't end up using it on Friday, and when I went to get it yesterday it was not in the kitchen. An email to my coworkers yielded nothing. This is quite strange; everyone in the office has seen me with it at our weekly group breakfast, and so knows it's mine.
I liked using the mug because it kept coffee hot much longer than in a paper cup, and because the cafeteria gives a discount on their coffee when you use your own mug instead of a disposable cup and lid each day.