The other equally common mishap - that you probably haven't considered - is CABLES. The most obvious example would be tripping on a guitar cord that's plugged into the guitar (you haven't known true horror unless you've knocked over a hundred year old German upright bass that way. Ahem.)
I may have told this one before, but what the heck; I'm an old codger, so repeating myself is in the job description. Not a 100-y-o doghouse, but years (and years) ago I'm at practice for a band I was humping gear for (free, as the keyboard player was my GF). Rhythm player's late, as he's at Steed Music making the last lay-away payment on his brand new Les Paul Custom, so they have a band meeting while waiting.
He comes in, opens up the case, takes out his new love, plugs in, tunes up, then - to be extra safe - sets her in a stand up out of the way on a table. Comes to join the meeting, trips on his cord, pulls her over, and the neck snaps clean through - fretboard & all; I mean 2 pieces - right about the 5th fret. Before he'd ever played a chord on her.
We spent the rest of the night on suicide watch.
And on the subject of stands: My predecessor as equipment manager with Vanessa Davis Band went to work for the Evil Empire. In a weekly sales meeting, he was assigned to role-play selling a stand (this is the days when there was only one kind; one bow under the body, another cradling the neck). It went thusly:
Um, you need this.
I already have one.
You need more.
Why?
Because it's not just a stand, (Hooks neck bow behind 'customer's' head & pulls head down), it's also a skull inducer!
Guess what everyone who ever heard that has ever after called guitar stands?
Peter