It should be at the start of the game. It should be a first blood, when an ally AFKs. It should be when in a 5 man one person has to go and the rest of you don't have to wait 15 minutes to leave. When EVERYONE on your team doesn't want to play, why keep them? Okay, so you want to inspire teamwork and comebacks, and not giving up. Well what if people don't want to do that. 7 minutes in the LeBlanc is 12/0, and my mid Kassadin is running it down mid, why do my teammates and I suffer for another 8 minutes? This should at least be in normals, for normals you can just queue up with things don't go well without any drawback.