He's gonig to need to drink a lot of tea to do that, Claire 
I've got no problems with people whose grammar is poor because English isn't their first language. Just the same as I'd be very tolerant of someone who genuinely has the sort of learning difficulties which makes seeing spelling mistakes hard for them.
In the absence of any good reason, I'm afraid that I tend to see poor spelling and punctuation as evidence that people don't give a shit. Which is sad.
It's not though, some people
genuinely don't know the rules. They just plump for trying to remember where they've seen each specific word written before.
My boss, a company director I might add, asked me to proof read an email:
some of the apostrophes were in the right place, and some of the words that shouldn't have them didn't, but still contained phrases like "affecting the companys ability to produce CD's and DVD's".
I corrected it all, and he looked at me curiously, and said "so when DO you have an apostrophe and when not, then?", henceforth I explained that you DO have one when it's possessive (with the exception of "its"), and you DON'T have one for plurals. He appeared impressed but bemused to learn that there was actually a rule and that you didn't actually have to remember all the specific instances to get them right.
People know that they go on some words but not on others, but it's a bit of a stab in the dark as to which.
