“Having worked with sharp objects before, everything was fine until I had to shave someone. The shaving cream made me really nervous. It was the most uncomfortable moments of my life. “I had to shave poor Alan. He really didn’t enjoy it, so I’m sure, in that sense, he probably hated working with me. “I didn’t go to a barber shop to learn but, at the same time, I didn’t really slash anyone’s throat, like my character does. I’ve never really experienced that full on thing.”