Clumsy drone pilot is knocked out after crashing copter into his head

The machines will have their revenge.

A bungling drone pilot managed to knock himself out - after he accidentally flew his own copter into the back of his head.

The man was testing the gadget out around a field when it looped back and slammed straight into his skull.

Of course, the entire incident was caught on camera. The clip cut out after the drone was downed.

But YouTube user Doctorsnaketown revealed he suffered just minor injuries from the crash.

“A little slapstick lap where I boomerang max speed into my own noggin!” he wrote.

“Luckily, I did not hurt myself, other than a bump on the head. Be safer than me! I am going to revamp my pilot seating zone once my head feels better ;)” he added.