If it's ranked and it's legit the first time playing a champ or even the 5th on a more difficult champ like riven or jhin, then it's pretty troll. If they do fine, whatever, if they don't - they have no valid argument against a report. Ranked is not another normals game like some people treat it; it's to measure how well you stack up vs your peers. Surrender @ 15 and/or run it down lane feeding and refusing to ward because you're down a bit in lane should not be tolerated; play the game, do your best, and give your TEAM a chance to carry you and help you be relevant again. They might not be able to help RIGHT NOW, but eventually they can - if you don't int. Now, if they have a second account and played a champ a million times on that account and/or a different season and are just playing him "for the first time" this year, that's a different story. It's somewhat more acceptable - however going 1/10/0 still isn't going to be excused by the fact they "haven't played this champ in forever". But playing a "new champ" alone isn't enough for me to report someone - they have to make bad decisions too and most likely feed.