That causes his smile to fall. "Harley..." He sighs. "I know you can defend yourself, but I don't want to unwittingly attack you in my sleep. I don't want to fight you." Honestly, because he'd probably lose. "Even wearing the restraints I might still hurt you."

The memory of how he had almost stabbed Eve is all too vivid. Granted, he hadn't been wearing his restraints at the time. At least he wouldn't be able to get to a knife if he was strapped in.