I should add to my other replies: I don't mean to criticise you personally, or your actions in your own particular case. In the general case I think the envelop

I should add to my other replies: I don't mean to criticise you personally, or your actions in your own particular case. In the general case I think the envelope proposal would often cause offence, but as a compromise with someone initially reluctant, it sounds like it was a clever solution.