As someone who has suffered a shoulder injury as a result of a car accident, and a torn rotator cuff injury at another time, both were persistent injuries that caused me to endure excruciating pain, so much so that even simple tasks that I took for granted prior to these injuries were not possible until I healed. I would not have been in the mood mentally or physically to indulge in any frisky business. lol Simple arm and hand motions, walking, lifting, and even minor stress or strain on the injured shoulder or arm would cause incredible distress, IMO, as they did me.
MS was witnessed by others as being physically ailing prior on May 5th and his shoulder/arm pain was mentioned in texts, and in every photo I've seen of him he appears to be distressed, IMO. I can imagine that even driving the Yukon, as I suspect MS did on the night of May 6th, would have been a painful exercise, IMO, as I recall driving really aggravated my injury and caused me more pain. I do not think DM had any such injury and the exercise and one-hand head stands in jail convince me he did not, IMO.
All MOO.