Joshua shows up at the training bright and early, still rubbing his arm. He was told about the training session, despite not making it to the meeting due to his wounds. He looks around, not seeing much for him to play with for the moment. "No huge weights for me, eh? Guess i'll pick a fork lift to toss around. Play around with my gravity to get better with it." He, without waiting for anyone else, starts jumping around the place, adjusting his gravity so he effectively flings himself across the whole room. He goes to the scaffolds, and tests it until he is at his full weight. It still holds fast, which was good. He starts doing pull ups with a single arm, his huge biceps bulging visibly through his tight fit t-shirt. This was an easy task for Joshua, but it left his mind open to think about things. He had done a lot of building damage, but the one thing that perturbed him was people died. He was shocked at his team mates for actually killing people, without remorse. We're supposed to be heroes, helping people. Soldiers kill people, police officers kill people. They need to be better than everyone else.
Death is not the only answer.
Sure, Joshua has killed before. He's killed people with his bare hands. No one but him and Fenrir knows it but he was found in prison. A man like Joshua tends to crush people when he can't handle his anger at an older age. He learned to control his emotions the hard way, and he doesn't forget his lesson. He switches arms, using his right arm to do pull ups now. This time he was going slightly faster, his thoughts fueling his light work out.