To be truthful I’m not really a SPAG pedant, and I don’t think I’ve ever been an arse to or about anyone on account of their making a mistake or not knowing the meaning/usage/correct spelling of a word. I just like to get things right as much as possible, since English is my second (actually third) language. I do make an effort to learn as much as I can and to do justice to the beauty of the language. It doesn’t help that I learnt American English first so I’ve had to re-learn a lot of things since moving to the U.K.!
Anyway, I think I’ll go for a Christmas mug or two instead if I buy some anytime soon. 