I'm saying that I don't trust them, not that you have any control over when they activate.

[That causes him to frown, though. Even if Sam felt the same, could he find a way to turn them off completely?]

It's a double-edged sword. Learning to control it would be the easiest route to take, but that requires practice and dedication to a set of skills we shouldn't trust. Not unquestioningly. But I don't think everyone sees it that way.