en muchas ocasiones las reacciones humanas no parecen seguir con lógica los acontecimientos. — Eso es lo que hace difícil decidir, a veces, lo que pu… - Isaac Asimov

It's out of fashion in these decaying times to be a scholar.

Why do you think it is stupid to go to windows instead of to doors?

"Because you advertise what you're trying to hide, silly. If I have a secret, I don't put tape over my mouth and let everyone know I have a secret. I talk just as much as usual, only about something else. Didn't you ever read any of the sayings of Salvor Hardin? He was our first Mayor, you know."

"Yes, I know."

"Well, he used to say that only a lie that wasn't ashamed of itself could possibly succeed. He also said that nothing had to be true, but everything had to sound true. Well, when you come in through a window, it's a lie that's ashamed of itself and it doesn't sound true."

"Then what would you have done?"

"If I had wanted to see my father on top secret business, I would have made his acquaintance openly and seen him about all sorts of strictly legitimate things. And then when everyone knew all about you and connected you with my father as a matter of course, you could be as top secret as you wanted and nobody would ever think of questioning it."

Saying something is 'too bad' is easy. You say you disapprove, which makes you a nice person, and then you can go about your business and not be interested anymore. It's a lot worse than 'too bad.' It's against everything decent and natural.