Tell me about your ballast resistor failure.

I built a 76 power wagon and drove it to Colorado and gave it to my son... I told him for months to put a ballast resistor in the glove box.. he didn't... I flew out to visit him and my grandchildren... I brought a ballast resistor and told him I put it in the glove box...
Six months or so later I get a call from my son on his way to work in his Honda...
He said he was going to take the truck to work but when he went to start it it turned over fine and wanted to start but wouldn't.. I said did you try the ballast resistor I put in the glove box?.. NO..
Later that afternoon the text came in.. "damnit dad..." It fired right up...