Allow friend to ride bike that has either no riding experience, or only tiny dirt bike riding experience (they will wheelie out of control, fly straight at the nearest object, or drop it attempting to stop suddenly.)
Pulling into Dairy Queen and slipping on a spilt chocolate malt.
Sitting on your bike on an inclined driveway talking to a very pretty girl, forgetting where in the hell your mind is and then noticing that it's already too close to the ground to stop.
Change rear-end oil on a shaft drive bike, spill 90w on tire, don't clean it up and then make a really sharp turn out of the driveway. *Splat*
Parking your bike so that it stands upright with the kickstand down and then having a slow leak in the rear tire which causes the kickstand to push the bike over.
Running into a bus after a 120mph+ high speed chase where there is helicopter pursuit and you are being taped by 5 local news stations.
Spending 3 hours washing and waxing your bike and then stepping back to admire it with some buddies and then watch it fall right off its side stand while it was warming up.
Pushing it over.
Covering it with a windsail (aka canvas cover) and letting the wind push it over.
Unbolting too many components from the back so that the bike falls off the jack.
Having an internally rusted CX500 center stand come apart whilst putting the bike onto it.
Discovering when you stop and try to put your foot down that the kickstart lever is up your pant leg.
Letting your wife drive the bike and having her stall it on an inclined driveway while in a 45 degree angle to the incline.
Entering a banked freeway onramp with a stoplight at the end, and realizing a little too late that the downside is just a _little_ steeper than you thought.
Whacking the throttle open on the highway when you think there's no cop around then slowing to normal speed again only to realize that a trooper has been trying to catch up with you for two miles and he's pissed so he decides to run you off the road because he thinks you were trying to run away from him, even though you explain to him that if you were trying to run that he wouldn't have caught you then getting out of any ticjet because *@!!$#, uh I mean cop, felt bad even though he never said "I'm sorry" . . . .but I'm not bitter.
While pushing your bike in an attempt to start it by compression, jumping on side-saddle with excessive vigor.
Successfully compression starting your bike while running along side, only to find out that you'd held a BIT too much throttle!
Deploying the centre-stand without noticing that the ground falls away on the other side.
Taking the wife on a ride on your brand new, first bike in 20+ years and making a slow, tight, turn on gravel.
Riding in stilettos and getting stuck on the footrest.
Swinging your legs too enthusiastically over the bike with tight trousers on and kicking it over.
Dismounting while trying not to wet yourself (cold weather..tuh!)
Riding short distances side-saddle fashion.
Pulling off with a blood alcohol level exceeding the stated limit.
Reaching down to pick up your gloves/keys/glasses.
Paying too much attention to the tiltometer on your valkarie.
Dropping your dirtbike on the side of a steep hill covered in pine humus, then while getting it righted go over the down side because it's too far of an angle to get a foot down.
Trying to ride away on the side of a steep hill covered in pine humus which is slipperier than sand.
Bopping down the freshly-oiled farm lane to see the neighbor kid with my brother on the back, cautiously toeing the rear brake, feeling the rear wheel slide as we headed straight for the barn, grabbing a panicky handful of front brake, doing a slow highside despite dabbing mightily, sliding right up to the barn door prone on the well-oiled bike with my brother on top of the pile, and hearing the neighbor say "Didn't that thing used to be orange?"
kill the bike while leaned over trying to make a slow, sharp turn in a parking lot.
Forgetting to remove the disc lock and taking off from the curb with haste...Tends to break the front caliper, too.
Falling asleep.
Getting help from a neighbor in pushing your 750 up a steep ramp into a moving truck. Though he might assure you that he used to ride a motorcycle, it turns out it was a 125 in Bombay. He gets 2/3 of the way up the ramp, looks panicked, and his knees buckle. Crunch.
Looking at the pretty curb to your left on a right-hand bank.