Various posts have mentioned pushy, impatient, know-all passengers, and this reminds me of a flight I was taking on an orange aeroplane earlier this year. There was a family travelling, the mother of which was, well let's just say the most important person around.
All the way through departures she was scolding and chiding her (actually very well behaved) kids, and husband. Tutting, huffing, puffing, looking at her watch, straining to see over the top of other people in the queue, she finally burst out, "Quickly Thomas, this way, the speedy boarding is off to the right - excuse me everybody, we need to get to the speedy boarding queue!"
A short pause, then a very small elderly lady with a lovely soft west indian accent moved to the side and said, "I guess your seat must be leaving first then love?" Cue a big grin and a wink from the harrassed husband!