Sat at my computer

I am a pedant where English usage is concerned. I don't mind new words, or different uses of old words - language moves on - but grammar is a different matter.

Has anyone else noticed that people no longer say that they are "sitting", but that they are "sat"? "He was sat at his desk writing a letter". This literally means that someone picked him up and sat him there, with or without his permission. It does not mean he sat down unaided. But I'm afraid that this particular usage has come to stay.

And then there's pronounciation. There are certain words that no-one, even (or should I say especially) the BBC, can get right. The one that really gets to me is "vulnerable. It is invariably pronounced "vunerable"; that is, without the first letter L.

(This is a rather grumpy post for a lovely day. It's probably because wonderful Devizes market does not seem to supply wall planners.)