I'm a freelancer and have various clients....I work from home. I invoiced a chap 2 weeks ago and he emailed me to say he hadn't got my bank details. I emailed him right back, apologised and included the info he needed.
Yesterday I saw he still hadn't paid his account and sent a very polite reminder...he emailed me back today and said something to the effect of
You have forgotten one thing again... BANK DETAILS!
John
I was like

Should I simply email him back attaching the original email that I sent with bank details...and politely say "Here they are...they were on the original"
Or should I say "THEY WERE ON THE ORIGINAL YOU RUDE MAN!
I have never had a client be rude before....I won't bloody have that! Or am I being over-sensitive?