I think if it is actually your job to teach someone language (because you're a teacher, or you're in possession of a small child, or something) then correcting grammar is appropriate. Or if someone's asked you to (my boyfriend has a standing order from his French-speaking colleague to point out the colleague's English errors). Or if you genuinely need to clarify what someone said.
Other than that, I think it's best to shut up :) (Apart from, as you say, revenge corrections which are probably fair game.)
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timeasmymeasure
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Date: 2013-05-16 03:53 pm (UTC)Other than that, I think it's best to shut up :) (Apart from, as you say, revenge corrections which are probably fair game.)