Hero selection screen on Route 66 Attack. We had 3 DPS and 2 Healers selected so far. Last guy picks Rein and asks for a second tank. Someone makes a joke that Bastion turns into a tank to lighten the mood.
Dude explodes at the joke, just straight loses it saying that it's time to throw, swaps to Widowmaker and starts calling everyone assholes.
One of the other DPS picks Zarya and he eventually gets back on Rein after we completely curb stomp the enemy despite his attempts at throwing.