Has anybody noticed a practice in the last few years of people thinking they can push in or misstakenly think they have the rite of way by calling five mile final early? Mostly charter people but I've had Dash 8's take 4 minutes to fly a five mile final, now I know they can fly slow but 4 minutes? Should it be pointed out to those who do it's not the right thing? Has anybody noticed this themselves? How long should it take to fly 5 miles on approach in a Dash or a Kingair for instance? The habit seems to be spreading from heavier twins right down to some of the harder to understand students who put "Number 1" after everything they say in the circuit from joining five mile to downwind.