Billy may also be a sociopath, or at least show sociopathic/bipolar tendencies, as shown in "Scout's Dishonor" when he literally stabs Max with a jagged candy cane, and in "Gwen Gets a Job", when he suggests killing the Flower Scouts in order to beat their cookie sales (although he said it was Petrol's idea).   Billy is also seen to have a sensitive side, as shown in "The Lake Lilac Summer Social", when he expresses his heartfelt attraction to Tabii to his cohort Petrol. He also visibly tears up