I had one of my favorite DYKWIA experiences last month, and it mirrored the 1K rush past the passengers needing extra time and families with children you described above.

The GA agent was a little quick on the draw and didn't leave a lot of time between pre-boarding groups. I was the first 1K to pre-board and had an elderly couple followed by a family with an infant, a toddler, and a large stroller pushed by the mom (no dad in sight) immediately in front of me. They were all looking over their shoulders when they heard the "herd" of 1K's coming up behind them. I simply said "take your time, they're not going to run you down". I then did my best "power forward" imitation and slowed down and essentially blocked the jet way walking VERY slowly. One person yelled to "get the $%#& out of the way". I stopped and politely told him that the people in front of us needed a little extra time. He told me to go to he$$ and tried to go around me. I'm not a small guy (back in the day, people would say it was a $20 cab ride to get around me!). I cut the guy off and he stopped short and proceeded to f bomb me for about 20 seconds. I didn't say a word and once the people in front of me cleared the door, I picked up the pace and got on board.

I took my seat (2B) and the "gentleman" behind me got on board and grabbed 4E. He then continued to mouth off about my behavior and how I didn't understand how much he spent on this f'ing airline for the ability to board early. I ignored him right up until he made one too many comments about "the slow old people that should just stop traveling if they can't walk onto a plane". I took a deep breath and walked up to the galley and told the FA he had a problem with 4E and he better either get him under control or get the captain.

The FA went over to him and got a face full of the same garbage that 4E was spewing at me. A minute later, the Captain appears and informs 4E that if he can't control himself he's not taking this flight. 4E fumes and says he's being picked on "by the big A hole in 2B. Before I can even turn and defend myself, I hear a female voice from behind me say "don't pick on him you rude little turd, you almost ran me over trying to get on the plane!" It was the elderly lady that boarded in front of me a few minutes earlier. The entire FC cabin cracked up. The Captain looked at 4E and asked him "is that true? Did you try to run over this nice lady"? 4E turned beet red and didn't say a word. The Captain said, "great, keeping your mouth closed the rest of the flight is a really good plan unless you want the flight met by local law enforcement when we land". 4E very sheepishly said "yes sir" and was a model passenger the entire flight.

In the end, I still shake my head at the way some people act over the smallest issue. That said, I did get a good DYKWIA story out of the deal.