Joker actor Jared Leto denies gifting Harley Quinn actress Margot Robbie a dead rat during their time together on Suicide Squad. Leto infamously sent his co-stars Joker-like gifts during the making of the DC Comics movie — including used condoms and anal beads, if Leto's 2016 interview with E! is to believed — but Leto's present for Robbie was a living rat named Rat Rat. Robbie told Elle in 2015 that she kept the rat as a pet because "if Harley got something from Joker, she'd probably cherish it," referring to the Joker-obsessed psychiatrist-turned-costumed criminal.