[sangnoir]

That's too binary for the real world. Somewhere between padded rooms and someone being left to engage in destructive behavior by themselvesbis "intervention", which is a common-enough concept exclusively applied to competent adults.

[throwawaydad12]

In this case, we're talking about secret sabotage of someone else's Internet access. This falls outside of the common concept of intervention. In general, if you have to act secretly, you're almost certainly in the wrong.