Back in late Year 1, myself and a friend were doing Vanguard strikes, and we got the Devil's Lair. During that one part with the Walker, I killed my one friend with my sparrow on top of the building towards the back. This continued until the Walker was killed. I decided to take my sparrow into the boss room to torment my friend some more. One thing that I forgot about that room was that you could jump through that one glass window. He did that, and that window was on a wall, though. So, I ramped my sparrow off one of the Fallen barrel things and managed to hit it perfectly to where it went straight over the wall, through the window and straight into my friend's face, thus sending him right into the wall and killing him for the final time of the strike. Just the perfection of the jump made me laugh for the next two minutes.