“Radford says the internet has also created a new type of clown — the stalker clown. These are pranksters who dress up just to freak people out. Some recent examples of stalker clowns were a clown who was filmed lurking and waving in a Chicago cemetery last summer and a teenager who terrified students and neighbors when he repeatedly roamed around the campus of Carroll University in Waukesha, Wis., dressed as a psychotic clown last November.”
I'm reminded of “Killer Klowns from Outer Space” (1988), which is a cult film.
https://en.wikipedia.org/wiki/Killer_Klowns_from_Outer_Space