Battery

The bald black dude tells me that humanity is enslaved by machines and that we are nothing but batteries to them.
He holds up a battery, frowning.
“What?” I ask. “I’m just a double-A battery? Why can’t they just buy one from the store?”
The bald dude shakes his head. “You’re not getting the point.”
“What about a midget?” I ask. “Are they hearing aid battery sized?”
“Wait,” said the dude. “Just wait a second, okay?”
“Is this why there aren’t A or B batteries?” I ask.
He leaps into the air samurai style and kicks me in the head.