At the weekend I discovered a new one for my own dossier of dealbreakers. Someone who haggles in a charity shop.
Here is the scene that played out across the glass-topped counter:
Softly spoken charity shop worker: That will be £15.97 please.
Angry joyless customer: So we'll call it £15 then, yeah?
SSCSW: No, it's £15.97.
AJC: Yeah, so we'll just round it down to £15, shall we?
SSCSW: No, it's £15.97. It's for charity.
AJC: [Now particularly angry and joyless] YOUR ATTITUDE STINKS.
I gave him the Jones Family Withering Look. It didn't really help.