I have only done this once before in my long year's of having Admin access... and I did it as a 'joke'. I can't remember who I did it too... but it was certainly someone I thought I could trust to 'get' the joke and not come after me with a noose.
What I mean is... I thought about editing your post to include text I added but making it look like it came from you, (in an obvious and jokingly manner).
WITH, I should add, a PM to you letting you know I was up to no good.
OH YEAH.. it was to wvram, remember him? I can't remember what I added but it was HILARIOUS.... well, it was hilarious to me anyway.