My coworker Sherri took a FOUR HOUR lunch break today. She showed up at 8:45 (is supposed to be in at 8 every day, but we have a flexible workplace so it's not a "huge" deal), chatted with a couple people for another 45 minutes, and then went, "Tee hee, I should probably turn on my computer!"
She mentioned to another coworker who sits nearby, Jim, that a friend was unexpectedly in town for the day, and they were meeting for lunch. She said something like, "This seems like a good day for a two hour lunch, wink wink nudge nudge." And, in theory, it is. There were like 5 people in an office that usually has ~40 people, and there were no managers in today. Nothing has urgency, since nobody is around to approve anything, and we have pretty flex schedules, so yeah, if you happened to take a two hour lunch when you normally don't, then nobody would probably notice, or at least not hold it against you. Not saying one should, but...yeah. It wouldn't be unheard of. And the expectation that you make up that time is pretty clear.
Sherri left for lunch at about 11:30. I stopped by Jim's desk to drop off some work around 3:15, and Sherri's computer was in sleep mode. Jim mentioned that she hadn't come back from lunch yet, and gathered that she wasn't coming back for the day. He also mentioned that sometimes, if he he goes to the bathroom before leaving work and comes back, he'll see that Sherri has gone home, assuming Jim has gone and that nobody will notice she has left. (Jim works 8 hours and leaves at 3:30. Sherri, who should start work at 8 but usually comes in at 9, and also takes longer-than-an-hour lunches, should have no reason to be leaving at 3:30 too.)
I went back to my desk at 3:25, and saw Sherri coming in the door. Apparently when Jim left a few minutes later, he threw out a, "Have a good night," and Sherri said, "You too!" and winked, which really annoyed Jim, who felt it was like a, "It's our little secret!" wink. We both wonder how long Sherri actually stayed. Did she wait until Jim's car was out of the parking lot?
They do not share the same supervisor so Jim doesn't feel it's his place to say anything to Sherri's boss. Also, Sherri is BFFs with her boss's boss. And it's very, very difficult to get people fired at our workplace, since it's nearly impossible to get anyone to take their place due to bureaucratic red tape and no managers want to deal with it.