Irrational things that annoy you (and non irrational things too come to think of it)

[Belmit]

You arrive at Waterloo. Your train is waiting. It leaves in about ten minutes. Do you a) walk down the platform and check to see which carriages have spare seats so you can board and sit down or b) get on the first carriage and walk the length of the train with a suitcase and backpack, knocking into folk and pissing peope off? Seems like a no-brainer. As in, 'that guy must have no brain'.