The astounding athletic power of quadcopters
 

"Here we have a drone that is trying to occupy a particular position in space, let's see what happens when I try push it out the way"
... BLOODSHED!!! that's what happens.
note: I couldn't watch past that point.

*edit*: here's the link: https://www.youtube.com/watch?v=w2itwFJCgFQ