Lemmy, what are your "missed flight" stories?

Somehow I missed a flight while I was at the gate. Mind you it was a small plane. I still don't understand it to this day. I was sitting at the gate waiting for them to announce boarding or watch the sign change. Nothing the whole time I was there.

Finally about 20 minutes after we were supposed to leave I get up and ask the desk staff and they tell me the plane left.

I didn't understand how this had happened and apparently neither did they. I didn't see anyone board the plane, there were no announcements or notifications.