I like to remind people that they do not decide themselves if what they do is ok or not, it's the people interpreting the collected data. In that regard, I read

I like to remind people that they do not decide themselves if what they do is ok or not, it's the people interpreting the collected data. In that regard, I read a good illustration (invented I guess): imagine a guy that does to a shop buy an alarm clock, then going to buy a barrel, and after that going to buy chemicals in a third shop. Wouldn't this guy seem suspect from the data collected? It was a teacher preparing a chemistry lesson, buying a barrel to collect rain water in his garden, and replacing his old alarm clock. He might have nothing to hide, but that's not a reason why his acts can't be misinterpreted....