I get what you're saying, but I don't believe in absolutes like that. Those kinds of concepts are not going to keep you from being abducted, if you are suddenly in the wrong country, or suffer some other mishap. You don't know. I'm not living under the threat of violence every day, but crazy $h!!+ happens every day. A few hours a week I can spend some time on it. That's just being prudent. I mean, you're already there in the dojo sweating.
Are we talking about Liam Neeson rescuing his daughter now? I thought we were talking about training in a dojo. If you want to talk about doing this stuff "for real," that's a different conversation.