Lonnnnng time ago, a friend brought his 1976 Chevy Caprice over... wanted to change the oil.
"Ok, you want to do it or you want me to tell you how to do it?"
"Just tell me how..."
Anyhow, got down to putting the new oil filter on and I told him "just tighten it up til you feel some something (which I meant to mean "after it seated") and then about a quarter turn more."
So, he did that and then put the oil in the engine.
Started engine up, and he walked around front of the car, looking in engine compartment with me.
Naturally, I stood back a bit to look under the engine to see if any oil was leaking... well, it wasn't leaking~ it was pouring!!!
I hollered at him "shut the m'fu¢ker off"... he runs back around and kills engine.
Upon further inspection and questioning... his idea of "feel something" wasn't my idea of "feel something".
He must have felt a snag in the threads of the filter as he threaded it on, and decided "that" must be the "something" I was talking about... so, he stopped and turned it a quarter of a turn more, ensuring disaster. Filter was about 2 turns shy of making contact when he finished.
He's not mechanically inclined, still, and he's 57. He just never did that kinda stuff.
As a side note, his older brother moved back up here from living in Texas. Couldn't find a job doing what he did down there, so took a job delivering auto parts for the local auto parts store.
They just fired him last week. Been doing the job for about a year. He couldn't tell a muffler bearing from a U-joint. He ran a route to the surrounding towns, delivering parts to multiple customers, and if he didn't hand the parts off to the person needing them and nobody checked the box of parts, there was good chance that he'd hand off the wrong box...and be miles away at the next town/customer... and have to retrace his steps and go back and fix the problem...
Before he returned, he was a draftsman for some big corp. down in Texas... got downsized...divorced...old lady got everything because he used her lawyer...has blown through his entire 401k...lives at home with elderly mom...and a multitude of other head shaking fiascoes... and he don't know how to change his oil, either!!!!