"He sent [Margot] a nice love letter with a black box with a rat in it — a live rat," Adam Beach, who plays Christopher Weiss, aka Slipknot, in the movie, told E! News. "It was beautiful. Then he sent bullets to Will [Smith] with a letter."
Guess what? Robbie went method too and kept it.
"If Harley got something from Joker, she'd probably cherish it," the 25-year-old actress told Elle.
Now, the rat is named Rat Rat and it eats organic berries from Whole Foods, according to the interview.
"Suicide Squad" is scheduled to hit theaters Aug. 5, 2016.