I had a combination master lock in prison. With people trying to break into it and constant use several times a day, exposure to humidity, it began to act poorly and stick. Trick to fix was to crush up graphite from a pencil and shake it inside the mechanism.

I would suggest talking to a therapist. You might be experiencing depression or anxiety or some other psychological issue that is causing you stress subconsciously. There's no shame in talking to a licensed medical professional about your mental health.

Mine always fail at the little loop thing.

You hear an odd noise. You imagine what it is. You notice everything looks different. Everything is too quiet. Your subconscious conjures up thoughts of monsters, ghosts, robbers, killer clowns, evil cleaning ladies...

I've been at a restaurant late at night doing deep cleaning 4am before and there was a food truck delivery, they drop it off and lock up, I didn't hear them because I had my Bluetooth in and he scared the living Christ out of me.

When it comes to phone chargers, different cell phone manufacturers have different charging standards and some let you charge at 65 watts or even up to 200 watts to charge a device from 0 to 100 in 20 minutes.

Tooth paste has grit to it that is harder than soap bubbles that massages and cleans teeth kind of like comet cleaning powder. Usually it's silica of some sort.