Suicide Squad star Jared Leto sent sex toys and soiled copies of Playboy magazine to his castmates.
The actor plays The Joker in the new comic book movie, in which an incarcerated group of supervillains team up to undertake a series of dangerous missions in exchange for their freedom.
To help his co-stars, who include Will Smith, Margot Robbie and Cara Delevingne, accept him as a prank-loving bad guy, Jared sent them a variety of disgusting objects.
Asked about a previous report which suggested he'd sent a dead pig and a rat to other Suicide Squad actors, Jared told E! Online, "Don't forget the anal beads (a sex toy) and the used condoms. I did a lot of things to create a dynamic to create an element of surprise, a spontaneity and to really break down any kind of walls that may be there. The Joker is somebody who doesn't really respect things like personal space or boundaries."
Will, who plays the assassin Deadshot in the movie, confirmed Jared had behaved appallingly on set in order to get under the skin of his character.