Hobo came, got laughed at by a bunch of kids, took it extremally poorly, and got put at his ass by MC. Then Ella shows up and shoo him away. The guy had no chance at doing anything, even if MC does not choose to help, as one of the kids was reaching to his blindfold, presumably to use his powers on him(kinda vague), and then MC is forced to do this anyway by "mystery forces". The end of an encounter, the guy knows beter now and fucks off into the distance.
After that she takes MC to the guy, guts him with a smile and unravels the "Transform others" power to MC. Why? What is justified here? The guy couldn't and wouldn't do anything to her or the kids, Charlie as a baseline would ensure that if nothing else, and she let him go the first time, didn't she? This was not defense of herself, or the runaway kids. Like, if a guy with multiple sclerosis, that barely even moves, attacks my girlfriend with a rubber knife over any reason, and she could defend herself, if not tear the guy apart - me scaring him away, then taking one of my buddies with me to track the guy, kill him for show and throw his body into a meatgrinder, just to explain to the buddy that the meatgrinder as a tool exists, and he has one in an attic ... Man, this is nothing but cruelty.