I have a bag full of old Federal Pacific Stab-Lok breakers. A quick Google search says one out of four of these are a fire hazard, and this question/answer corroborate the fact that this is a low-quality residential brand that should be avoided.
Several years ago my licensed electrician brother and I replaced the load center in our house with a brand new GE panel and brand new breakers in accordance with NEC 2011. This was primarily because the old FP panel was out of space and we wanted to bring our kitchen and baths up to modern code (i.e. not one circuit for two baths, kitchen, and exterior outlets) thus avoiding nuisance tripping every time my wife fired up the hair dryer. Anyway, that was all just so nobody worries that we did something wrong and burnt the house down. The house is fine, actually, better off now with each bathroom and the kitchen on separate circuits per the NEC's requirements.
What should I do with this old bag of FP Stab-Lok breakers? Should I sell them, knowing that they lasted 31 years (house built in 1980) without any problems? Or, is selling them just encouraging someone to risk damaging their house?
I know many SE sites frown on ethics/subjective questions, but the help center does not forbid them, in fact it says "questions you would typically ask a home contractor" are on-topic and this is definitely something I would ask. In case you are curious, my electrician brother would say "sell them, not your problem" but obviously he does not care as much as I do.