MAKE SELLING UNITS HARDER!!!!!!!!!!!!!!

so i was playing ranked in TFT and what do u know, misclicked and sold my lvl 3 lissandra, not to mention i lost the same round because i didnt have 4 glacials and 3 elementalists HOW THE FUK IS IT SO EASY TO SELL A CHAMP that when u try to rotate them and move mouse just little over champ line it instasells doesnt matter what level or what items, how is it possible