Years ago, I worked with a curmudgeonly guy named Fletcher. He was an awesome electronics tech, skilled at keeping things going during testing, and sometimes performed unacknowledged miracles to do so.
But his curmudgeonly nature sometimes got the best of him, which lead to Fletcher's Law:
When putting a piece of instrumentation back together, use as many different types of fastener heads as possible.
Bonus points for a spline-head. This mostly happened when it was somebody else's gear and it fell to him to fix their problems in an emergent situation.
This was in the days before all the tamper-proof heads. I think even Fletcher would think that using those would be too much