I know, nobody cares and it is my own fault.
I was in champselect and I`m about to ban a champ. Due to the new runes, some champs became stronger then other ofc. So I`m thinking about who to ban. 5 sec before the timer ends, I choose vayne, bc I see her way to often lately. Well, the support also waited with his ban and guess what: the supp banned vayne before me, making me unable to complete the banning process.
In slight panic I switch to master yi. But haha, unlucky, mid also waited so long for the ban and is again faster than me. turns out, I lost lp and had to wait the 30 minutes.