So, say there's a two-way street, and due to construction it's closed down to two lanes. One lane is full of cars going one way. What is the other lane for?
a. Um, traffic going the other way.
b. Sixty-five MPH.
c. The same thing. I don't know why nobody's in that lane. I guess it's because I'm the smartest person here!
Ready for the answer?
If you said a, I like you very much and you are sane.*
If you said b, you are clearly an IT professional who hasn't slept in a month. Go to bed.
If you said c, you're a degenerate freeloader who thinks the world is all about you! Congratulations! Also, I hate you.
*The term "sane" as used here is strictly relative, and should not be construed as an alternative to professional care.