If we are going with N=1
I ride on the same (uphill) road as very heavy good vehicles every day. They are very loud and very slow, they are also absolutely horrible to drive up hills, It's all 10mph and clunking gear change after gear change after gear change. I try to pull over and let them past as soon as I can but I need to time it so I can get on the pavement or filter in behind them because I guarantee you that every single car driver will have a brain fart and not want me ahead of them because I might hold them up, which is imposable because I'm now just as trapped behind the lorry as they are now.
I have never had a cross word from one of these HGV drivers, the problem is when they go one way and I go downhill another and all those cars trapped behind them decide they must overtake me NOW even if it means being 3 inches from my elbow. It's bloody terrifying and completely unnecessary because the road widens about 10 yards up the road, and even when it does widen you get those that want to make a point by close overtaking because as they can't punish the HGV for holding them up they will be damned if that cyclist costs them a extra tenth of a second.