I have a habit of falling off things.
I first started as a toddler when I smashed my teeth out falling off a wall, I've fallen off bicycles, horses and a bus. And I've been (mostly) sober.
More recently I've fallen over in a children's playground and in a packed restaurant (before I'd even had a drink) and embarassed my dining companion. It just makes me laugh (until the pain sets in). I put it down to unsuitable footwear and bad flooring situations mostly.
The most ridiculous thing I've fallen off is an exercise bike. I managed to go over the handlebars of this stationary object. The person who saw me do it couldn't figure out why it happened.
And earlier today I nearly fell off the bed,as I was kneeling on a folded up quilt.
What's the most stupidist thing you've tripped over, fallen off?