(I work in a lab where we all have our own bench and a desk beside it, but they are separated by aisles, without walls, so we can all see each other and communicate. The colleague who works on the bench next to mine is in his late 50s, and is a few years from retirement. In the middle of the afternoon, his personal cell phone rings.)

Coworker: *picks up* “Yes? *silence* “Yeah, I’ll call you back later. I’m at work.” *silence* “Yes, I still work…” *a few more sentences and he hangs up* “D*** it, most of my friends are retired and they keep forgetting I still work!”