It surely lowers the bar to snoop in the real bedroom. After all, now they know what to look for, I'm sure enough parents would make that curious enough to take a look even though they weren't suspicious before. The authorities just have to add that it's a common sign to appear tired when high - something happening often enough to teenagers who are perfectly ok otherwise.

Well, I guess the kids will thank their intrusive parents with evasive strategies. But it's disturbing enough that there seems to be no limit in spying anymore..