Probably old news, but I'd never seen it before.

Playing this weekend as Raze, my opposite number tossed a grenade toward Heaven on Ascent where I was. At the same time, I tossed a grenade toward main. They collided mid site and sent mini-grenades all through the area, killing their Jett who had just rushed in...

I was laughing too hard to follow up properly and immediately got headshot by Sage, but it was definitely a highlight of the weekend.