You've noted correctly that the training already began! A long while back, actually. Teasers here and there, but not many seemed to pick up on them, lol! (or they did but didn't say) Some did pick up on Chris and old Mr. M's conversation and yes again on the freedom it gives him, as well as giving control.
The last I would want with this story is to make a mockery of D/s. I also took out the 'comedy' tag. Although there might be some funny scenes and lines throughout the story, it's not comedy. Dramady, perhaps, but that tag doesn't exist.
I'm not saying anything...
He saw it, or heard it... I'll let you decide which.
That's why he chose to respond to Chris's question with honesty; because he does trust Chris and it was the only way out for him, when that question came. By showing that... who knows...
Instead of answering the last bit, I'll let the next chapter deal with that.
As for your two former questions, same answer as to Tim: I'm not saying anything.