Can relate. I guess every guy had that issue at a young age when you got blue balls and just looking forward that date when you’ll get to release it, just to be touched once and have to step out to clean yourself. You’ll NEVER make the same mistake again.
Was an on/off service technician/engineer for the last 20 years and can confirm. Many times I’d get a fault call just to arrive, pull out my screw driver and the issue simply resolves itself. It’s as if it knows things are getting serious and it’s afraid to be taken apart.