People who don't say please and thank you to shopkeepers / assistants.
I've never worked in retail, but have witnessed many a rude customer, whilst queuing behind them.
There's something about crisps. In sitting lengthy professional exams a few years back, candidates were allowed to bring in limited snacks and drinks. I sat besides an unhealthy hog, in an otherwise dead silent exam hall, who loudly chomped away on crisps with the irritating rattling of the...
1. The sound of someone scoffing crisps with their mouth open.
2. ********s not overtaking, whilst in the middle or outside lanes of dual carriageways/M-Ways, when there's plenty of space for them in the inside lane.