If your friend summons a sparrow and gets off it, you can shoot it with a scorch cannon, and he can get back on without it harming your friend or exploding prematurely ;) Thus, giving your fireteam a portable scorch cannon detonation. [spoiler]if scorch cannons were in the crucible, I'd do it all the time[/spoiler] It probably works with pikes and interceptors as well. I wonder if it would work on an aegis shield...