Had a dvd player that would skip all the time even if it was a brand new dvd. Got pissed off and threw it at the wall. Girlfriend plugged it back in a couple hours later and it never skipped again.

For several years my pc would only turn on while at a 45degree angle, not on its side and not upright but tilted 45degrees. After it turned on I could put it back and it’d be fine.

Eventually I moved and the pc ended up upside down and shaken, I put it down and a screw fell out of the psu. Problem solved!