This is a huge annoyance of mine. I mostly fly AA and get upgraded about 99% of the time, and theoretically, with ~16 people (max, and talking MD-80 here) there should be sufficient room in the overhead bin for everyone.

It never fails, if I've come from a tight connection or just not felt like sitting on the plane for an extra half-hour, that ALL of the overhead bins in F are closed. The first time it happened I went to put my bag in the back of the bus (no room, right?) and got screamed at by a Y pax (told him to suck it up - there was plenty of room). 5 minutes later FA came by and said there was room in the overhead after all and that I could move my bag up.

Ever since, I've boarded, unlatched bin after bin in the F cabin, and looked for somewhere to stick my rollaboard. I always, always find space. This is so annoying. I understand that FAs shut them so as not to encourage Y pax to put their stuff in the F cabin, but it becomes a time-consuming hassle to find somewhere to put my stuff. I'm one of those people who HATES it when people block the aisleway for unnecessary amounts of time when boarding, so it's a double curse.