I have literally laughed myself into hiccups reading this thread.
I'm dyspraxic so I'm always doing stuff like this. I think I've told this one before but I once ran across the (open plan) office to answer my phone as I was waiting for a callback from the GP and didn't want to miss it. Just as I reached my desk I went over on my ankle, flailed around as I went down, banged my chin on the top of my desk and pulled my monitor on top of myself. I ended up sitting on the floor with a sprained ankle, seeing stars, blood running down my chin where I'd bitten my lip, bruised knee from where the monitor hit it, and I missed the twatting phone call.
I was the Health & Safety Officer at the time.
I might have to name change after this as it's pretty outing. Years ago I was at an evening wedding reception. The buffet had been open for a bit, most people had had something to eat so although there was still some food out, the lights had gone back down and the dancing had restarted. The friend I was with suggested we get a second helping from the buffet. As we approached the table the DJ started playing a song I love, so I started doing that wanky dance-walking across the buffet area. Next thing I knew, my high heel hit a bit of dropped pastry, I slid several feet forwards with increasing momentum and crashed into the buffet table. I managed to grab the tablecloth as I landed on my arse and pulled everything off that section onto me and the floor with a crash that could be heard over the music. (THANK GOD the remaining wedding cake was on a separate table off to the side.)
Cue me rearing up dripping salmon quiche and coleslaw off my posh frock, all 8,743,663 guests leaping over to help me up, brush me down, pick up the broken plates and bent serving spoons, start clearing up the mess etc, my friend pretending she'd never seen me before in her life...and over this general pandemonium and most embarrassing moment of my entire existence, where I was fighting back tears of shame and trying to laugh it off and generally stop people fussing over me and make me and even bigger centre of attention, the DJ said over the mic "safe to say the buffet is now closed, ladies and gents".
Worst of it was I hardly knew the bride and groom at all; I had been my friend's "+1" as she hadn't had a partner at the time. I did send a card via my friend afterwards apologising for making such a tit of myself and hoping I hadn't spoilt their evening and received a very kind "not at all" reply, but even just writing this out again, at least 20 years later, has left me hot with shame
.