I’ve found that there are a large number of daily tasks that come down to an either/or decision.  As in, if you perform the task one way, it will work perfectly, but if you perform the task the opposite way, it won’t work at all.  I’ve assembled a few of my favorites here.

Percentage of time time you will slip an unmarked USB cable into your computer upside down:  92%.

Percentage of time that you will try to plug in an electrical device into a polarized wall outlet the wrong way causing you to have to flip the plug the other way:  98%.

Frequency of times I will need to make a new pot of coffee in my communal office coffee pot because the previous drinker filled their cup and left 2 millimeters of coffee at the bottom for the next guy:  Very Frequent.

Chances, when putting my slippers on in the dark, that I will slide my right foot into the left slipper:  Excellent.

Odds that I will put the wrong sock on the wrong foot with a fucked up pair of Nike athletic socks I own that actually have a left and right sock:  82%.