Speaking of common sense....
I'm about 20 minutes from starting day 2 of an Arc Flash & High Voltage Safety - Qualified Electrical Worker Certification course. The instructor for the course mentioned how, after an incident takes place, he dislikes hearing the comment, "if he had only used common sense". He believes that a lot of young people entering today's workforce lack the level of common sense that he and his generation had. The instructor grew up on a farm and at an early age was made aware of how dangerous his environment could be. Later as a young adult he took that awareness into his work environment. People will always make mistakes regardless of their background but he could be right about today's youth entering the trades with a greater handicap when it comes to "common sense". With so much attention and time placed on electronics and the virtual world therein you can't possibly develop much of a healthy respect for the dangers of being in an environment that a tradesman can often find themselves in. The instructor suggested keeping that in mind when you're mentoring the up and coming workforce.
A malfunction at the junction