[Anything like concern is immediately waved off. He had nothing awful in mind.]

Little things, like pick up that rock. Now pick it up after a little boost, how much easier it is. Or tossing darts at a board, how much accuracy changes, or how fast one could run from here to over there and so on.

[It is really simple stuff but to him it would also be vastly entertaining.

Had been. That pause, and then 'it's dangerous' sounded .. potentially questionable.]

When you say 'dangerous' do you mean minor injury, major injury or potential death?