The 42-year-old actor often buffs up for movie roles but said that his wife of 15 years, Deborra-Lee Furness, hates it when he looks better than her.
He told News.com.au, 'Overall, Deb would say to me my job is to be out of shape so that she can look as good as possible. So she's always upset with me if I'm in really good shape.
'She's like, 'I think you're forgetting the contract of marriage - ultimately everything is about me looking better, so enough with the training. ''
And he said that she isn't a huge fan of his muscles anyway.
'Let me give you a little insight into my wife. I met her on a prison drama where I had tats all over my body and a mullet, and that turned her on,' he explained. 'She likes the bad boys.'