I have a rechargeable facial hair trimmer that has an amazingly stupid feature:  It doesn't work while it's plugged in.  That's right.  Some genius engineer came to the conclusion that it would be a good idea to make a rechargeable device that'll only be used while not plugged in.  To that jerk face idiot, I say this:  It's impossible for this feature to not fail.  Without question, the device will run out of batteries while it's being used.  What does this mean for the user?  A half shaved face.  And when the user plugs the device into the charger, what do you get?  An angry, half-shaved user with a rechargeable device that doesn't work while plugged in.  It would be one thing if the device had some sort of battery meter telling the user when it was time to recharge.  But no.  It's left up to chance.  Will it die this time?  Will it die while I'm trying to shave my face?  Will it die right before I shave off my mustache, leaving me with a dirty dirt-stache (yes this happened to me)? #technology