Yeah. I get that. For meatcoding I've often felt the tests were for other people, not myself. Until the codebase becomes big. My memory is leaky, I guess, so then its largely that I don't want to forget about interaction between component x and y.

With a team, or nonmeat coders, I will mess up at least once a day and I find my mistakes the costliest, but that's probably because I'm not letting go of control much