Glass manufacturers hate bubbles.

A lot.

I can’t say with complete certainty, but 1password at least does have a flag if I use the same password for multiple accounts. I don’t know if it’d identify this or not

Nah not anymore, now you spend a day or so building some convoluted excel calculator once so that you never need to do the calcs again.

Then, 3 years later when you go to add or change something in that calculator, you have absolutely no idea how it works and decide the change wasn’t that important anyway.

Engineer: 2, but 3 to be safe.