ARAM picks

After quite a number of ARAM matches being dislodged suddenly before the count is up due to what is labeled as "a summoner failed to pick a champion" and what I've been told is someone re-rolling but not having a champion to pick up, I feel that a change needs to be made to force them to play with what they get instead of the way its done. If they don't want that toon to play, but have it, and re-roll the match away, it gets quite annoying. I don't know if that's what actually happens, but if it is, I suggest making the re-roll gray if they don't have a champion to re-roll to, so they are forced to get used to playing that character and don't boot an entire match because they only use a roster of "ARAM capable" toons. Again, I dont know if that's how this works, but it would be super helpful to match wait times if that is the case and this is implemented.