At times when they call only the first class passengers to board I have seen more people enter than the number of first class seats.

How about a category "rushinium" for those who rush to get in the plane, and a category called "rushoutium" for those who jump to get out of the plane before the pilot has turned off the fasten seat belt sign.

Recently on a flight the pilot even forgot to turn off the seat belt sign after docking at the gate and it made no difference. I was among the last to deboard (I was on standby for the flight and got the last row) and told the pilot that the seat belt sign was still turned on.