I consistently praise flight attendants and other Jet Blue employees that enforce the rules. I also frequently stop others behind me from racing to get in front after the plane lands. The mark of a higher civilization is the ability to make and enforce rules.
On a related note last time I flew out of JFK a couple folks lifted the security line "rope" and it started a new line that cut straight to the front- all the while the people in the "real" line did not notice until perhaps 80 people were in line. It was not pretty. Then a guy HS guy comes around asking folks if they are boarding in X minutes then they can skip the line. This country now rewards folks for personal failure. How stupid. We need to come up with a system that allows for real, once in a awhile screwups but does not allow people to game the system, arrive late and then jump the line. Pretty much the same in politics- rewarding folks for failing to think ahead.