You're frustrated, Iains. Bite your lip and try not to show it. Yours sincerely, sandal-wearing*, Guardian-reading, soft pinko liberal couldn't-do-so-had-to-teach-instead abject retired teacher.

Nice to see your Damascene conversion! Do 'ave a word in Teribus's shell-like...

*without socks. Call me anything you like but do NOT accuse me of wearing socks with sandals. Unless you want 100 lines and half an hour's detention, that is.