While filming the British TV series ‘Shameless’, actor James McAvoy experienced the unexpected. Speaking to The Times newspaper, he said: “I had the merest hint of an erection a couple of times. “It’s usually so uncomfortable that it’s more about making it look like you’re really going for this person, while convincing the person that you’re not having a good time. While at the same time not making them feel like you’re saying ‘Don’t worry, I’m not enjoying it, because you’re stinking!'”