I've had a while to stew on this whilst steaming on the bus. And despite now being home, warm and dry, am still slightly annoyed. Enough to draw a diagram and post a lengthy rant on here! Bearing in mind I'm probably a bit extra-irritable with loss of GM.
Going home from work, it's dark and pouring with rain. Get to the bus stop, the convention of course is to join the queue at the back of the stop. People are crammed into the bus stop trying to get out of the rain which makes it particularly difficult to move forward or backward. The bus stop design has an opening at the front on the road-side where you get on the bus, an opening at the back on the pavement-side where you join the queue, and another opening halfway along, pavement-side. The road is a bit curved so we don't get a lot of notice that a bus is coming, but it's enough.
A bus arrives, people start boarding, we all shuffle forward, until bus is full and drives away. This happens to leave 7-8 young-looking people at the front of the queue. People are still joining at the back and starting to gather around the outside of the stop.
A bus approaches round the bend, general buzz of anticipation from some of us. Not a single one of the young people at the front makes any kind of movement - some are staring at their phones. By the time I realise that nobody is stopping the bus and start to move, it's too late - the bus zooms past. I said something rude out loud to the world in general (not that anybody would have heard me with their earbuds on).
Eventually it looks like another bus is approaching, this time a middle-aged woman near the back shouts desperately "Can somebody flag down the bus PLEASE!!" and again it's obvious that none of the young people at the front are going to move (or even if they heard her). I'm near the halfway opening, so I snap something like "For God's sake!!" push past a couple of people, run around several more on the pavement towards the road and frantically wave my arm. The driver sees me and stops the bus neatly in front of the bus stop opening.
Those same people who had been uselessly standing at the front, now obliviously board the magic bus which had magically stopped in front of their good faces, whilst I'm left standing outside the bus stop (having lost my place in the queue) in torrential rain 
Until it's the turn of the woman who had shouted and saw what I did, who waves me in front of her and thanks me for stopping the bus 
I was still high on furious menopausal adrenaline, so I mumbled something like "I just got The Rage!' so she now probably thinks I'm a loon.
As for all the people who caused me The Rage, presumably they're mystified by how buses work and if they noticed anything at all, are probably Snapchatting their friends about the mad middle-aged woman who caused a scene shouting "STOP THE BUS!" and the other mad middle-aged Asian woman who caused more of a scene shouting "FOR GOD SAKE!" and running out into the rain waving her arms for no reason whatsoever.