1. You’re out with friends and you automatically get the bill at the end of the night to work out how much everyone owes (and they spend the next 2 years taking the piss if you make a mistake!) 2. People insist on telling you how well their young kids can count at any opportunity. It’s lovely to hear, but when I’m off duty I’m not that interested, sorry! 3. You tell people what you do and their reaction is “I hated Maths at school!” Fair enough, I have my moments when I’m not too keen on it myself. 4.…