The guy wasn't last hitting at all, kept hanging back far too much, and constantly ran away when opposing champions weren't even in range to attempt anything. Whenever I got a snare and tried to follow up with Ws and ultis, he was really far away and didn't even try to walk towards the opponents to hit them, ever. Late game he even went to kill some jungle mobs (answering he needed the gold when I asked him what in the world he was doing), and almost got himself killed by some treefolk mob that was too much for him to handle. He ended up 0/13/1, but at first the one doing the feeding was actually me until I stopped hoping he'd ever try to fight alongside me and pretended I was soloing bottom as a support.
yeah he was straight up bad.