We have all heard about stolen goods being "hot" . In my opinion they are talking about some criminal, or criminal organization, they have in common. "Sick" might mean that "Scotty" ( beam me up, get me out of here ??? ) is unable to act, and DM says tell him to stay away at this time, because I am too hot ( police are aware of criminal activity, and are watching him, as well as those connected to him. ) I am beginning to have the feeling that DM was deeply involved in some kind of criminal network, and his "friends, employees, and business associates" were too. God only knows what this bunch was really up to, but I hope it all comes to light. I assume the Defense prevented The Crown from asking who Scotty is, and having the relationships to him/her/it ( if it is an organization ) revealed. That could be what a lot of the legal arguments are about. It seems like we are on the verge of opening Pandora's Box, but so far the Defense is managing to sit on the lid.