People who come to forums asking for advice, then generally saying they're going to ignore the advice and actually seek to "prove the site wrong" do not belong on the forum to begin with.
Seriously, why are you even posting here if your only goal is to prove the advice wrong.
If a snake is not eating, leaving it alone with live prey is a bad idea. That's just common sense. Your example is the same as saying you left a baby on the counter next to a hot oven and saying look, it didn't burn itself. You can only pull that trick so many times before something goes wrong. It may not have ended badly this time, but that still doesn't mean it was the best thing to do.
And for what it's worth, generally a BP that's escaping and doesn't stay in it's hide means it's a stressed snake.
Edit: Also, I'm guessing that since you watched it and tried to steal it's food(he struck at me for trying to take it away ) you didn't leave it alone anyway, which was my main point.