All of the above on more!
Bad manners though counts as an irritant.
At work on Saturday I was serving a customer and making general chit chat with her, when a youngish lad, talking on his mobile, came right up to the counter and barked "PITTA BREADS" at me....almost without pausing for breath on the phone. Being suitable peed off with his manners I said "pardon?" even though I had heard him, I just wanted to make him repeat it, thus hopefully annoying him too. He then sighed, said bye to his phone pal, and said "pitta breads- where are they?" at this point I gleefully said..."well as you can see, I'm already serving someone, you can either find them on that aisle over there (and pointing in a deliberately vague direction) or wait till I've finished, THEN I'll help you!
I'm glad to say he shuffled off suitabley sheepish, I felt extremely smug with myself (and yes I'm aware it sounds peevish of me- lol)