Forget any of this. Lets talk about coach passengers who put their bags in FC and then disappear into the back. This bugs me so much, as one perk of buying FC is that I can board at the last second and have overhead space.
My wife was mad at me one time as someone coming in when FC was already boarded started shoving our bags around roughly to try and fit his oversized bag in so I called the flight attendant over. If you want to put your bag in FC buy a freaking FC ticket.
/rant