I hate this. It's common for EGPH departures now. Checking in on an already busy frequency "Eh Scottish good morning ehh poshjet123 ehh we appreciate your busy but ehh were running late and it really would help us an awful lot if ehh you could see your way clear to ehh letting us cut the corner a bit thank you kindly"
It's a waste of r/t time,pure and simple. I ignore it,no point wasting more time berating someone. I'm always as expeditious as the traffic and airspace allows me to be. As if the fact that a flight is late will influence my decision!