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George Clooney is hanging up his batsuit, despite his cameo as Batman in The Flash.

The Ocean’s 11 star told Entertainment Tonight recently, “I do not think there’s enough drugs in the world for me to go back.”

As for why he returned to the role for The Flash, Clooney joked, “I thought there was such a clamor for me to come back as Batman, as you know. There was a clamor … I actually said, ‘Where are my rubber nipples?’ And they were like, ‘Can we do it without the rubber nipples?’ I was like, ‘Well, it’s not really my Batman, is it?’”