Derek’s hand rested on the punching bag and he beckoned Isaac over. “Do as much as you feel comfortable. Stop whenever you want, okay? If you’d rather be on the treadmill or spar with me, that’s totally okay.”

"I just…everytime I look at this thing, I remember, and I don’t…I don’t want to remember, Derek." He whispered softly and took a deep breath, his eyes suddenly narrowing into mere slits, his jaw clenching as he forced himself to gaze at the punching bag.

"It’s just a piece of exercise equipment, remember that. And I’m going to be with you too, I’ll hold it from behind so it doesn’t swing too much." Derek stepped out of sight and braced his hands on the sand filled bag. "Start normal strength, then hit harder."