Don't Ask About Raisins

To finally put the burning question to bed, yes it’s possible to injure yourself with an orange

Oh yes.  That was really keeping me up at night.  But, just to clarify, you injured yourself with an orange what?

Not an orange thing...an orange.  The citrus-ey fruit.

Moron.  How did you manage this?  Did you throw the thing as high as you could, let it drop on your head and give yourself a concussion?  That's not the recommended way to eat an orange.  

I was just trying to peel it.

With a jackhammer?

With my hands.  

I was starting to peel my orange, and everybody knows that the hardest part of peeling an orange is starting it.  The first time you have to break through the skin, just about anything can and does happen.  You can break a fingernail, or shoot orange juice into your eye, or in my case, you can break traction.

See, the coefficient of friction on an orange peel is fairly low.  It's exactly mid-way between egg shell and avocado, for those of you who are data-oriented.  

That's not real data.

So when you're applying enough force to break through the rind, you have to be very careful not to lose your grip on the orange.  If you do, the force you are applying turns very quickly (Nothing in physics happens instantly) into kinetic energy, sending your finger careening towards your other hand.  Upon impact, your fingernail turns into a 9-iron, carving a nice divot out of your knuckle.  This hurts, but not nearly as bad as it's about to when you get the aforementioned orange juice into your new open wound.  Fortunately, your first instinct, as with many injuries, is to suck on your now-painful finger.  This is fortunate not because of the medicinal properties of saliva, but because you have orange juice on your finger, and it tastes delicious.