Mark Ruffalo: For some reason, my whole life has been, 'You can't do this, you can't do that.' The other day I was watching these kids crossing the road, and they have these crossing guards, kids who help other kids across the road. They would never let me be a crossing guard when I was a little kid . It would come up, I'd always raise my hand, I would never get picked . They thought I was too wild, but I knew I was responsible enough, if I was given that task.