Not that I would have ever thought of throwing a bottle at someone…..
But before I ‘became a cyclist’ road cyclists used to piss me off quite a lot. I can now understand the reasons for riding two abreast to stop people overtaking dangerously in some cases – but if you didn’t know that you’d imagine they were always just being inconsiderate.
(I have also had a group of roadies all swear and make rude gestures at me, because I beeped my horn before going round a completely blind bend (to make people aware of my presence) – they were round the corner and decided I was beeping at them and got very cross.)
Generally if I’m riding two abreast and a car comes up behind I will go back to single file – generally in a car if someone wants to overtake me I’ll pull over where convenient too. It’s just common courtesy surely.