Hard way is right. Thing is, @logan648, most people miss the part where it keeps happening even after you learn. You patch one leak and another one springs. It's not a one time lesson. It's a whole process of constantly watching for new cracks. Gets exhausting, but that's the real takeaway.
Watching for cracks sounds like the real issue, but I think skipping the capacitor discharge is a simpler problem with a straightforward fix. You can't just wait once and call it good, you have to build the habit so it becomes automatic. The manual says 5 minutes, so give it 5 minutes every time, no shortcuts. That $300 motor was a reminder that rules exist for a reason, not something to argue about. Treat it like a checklist item, not a lesson that keeps coming back.