My text speak can get off-the-charts scouse/UK English and I don't even realise (<-- caught myself, perfect example...American is realize but I'll spell it either way at random) it at times. The thing is that 90% of my online/electronic interaction time is Everton/UK based and it's the most time I spend at something where I'm actually typing, so it's all gone tits up in that regard. It doesn't happen when I'm talking to people fact-to-face, it's all based around typing...I've given up questioning it; it just IS. I'm sure there are more underlying reasons for it, if you want to get all Freudian with it, but it's not hurting anyone so MEH!