If you get stark raving mad about something, how long a cool off period do you need?

I saw a B.S. remark from a damn total stranger tonight, on Facebook, that was directed at me. Considering deleting the whole mess, but I have worked to hard on it to get it set up right, to just totally lose it and wipe it all out. Still may do it anyway, but thought I’d allow myself to cool down first. What would you folks do?