My W just sent me a long email about some event for D9 that I had been unable to schedule (it's quite an early morning which D9 is not good at and quite a distance to get to) and included an antagonistic "I'm sure this email will probably piss you off".
All I responded was, "If you and friend can work out getting D9 to the event, I will pick D9 up from event."
As short and concise as possible so they can understand. No more, no less. Even skip filler words if possible...