See you just proved exactly why not to hire overqualified candidates. You left in 6 months, so then they had to go through all the expense of the hiring process again. They would have been right to not hire you had you been truthful on your resume because you did EXACTLY what they would have feared.
They might not have had to spend any money training you, but they still spent tons on the rest of the hiring process, the time it took to sort through resumes and interview people to get to you (and then your replacement 6 months later) wasn’t free. That’s paid time that could have spent doing things more directly related to earning money.
I understand your position. Desperate times, desperate measures. What I’m pointing out is the other side, and how your action actually prove the other side is right. You cost them exactly the time and money that’s why not to hire overqualified candidates. Looking at reality from the other side is where real learning happens. There are good and valid reasons not to hire overqualified people and you yourself have BEEN those reasons.
Bozo, did ever occur to you that the value I added during those six months was probably 5 times what some high school reject would have provided? I gave them way more than I got back.
When I left I told them the truth they had NO PROBLEM with my work and actually called me 4 months later for an engineering position.