What really grinds my gears - literally - is having to have two sets of sockets because America. It’s really gets annoying when you lose your 10mm socket and the other one isn’t quite right, but you can’t work out is 18/32s is close enough and then you bust a nut.
I’m worried about nuclear because I have worked in enough large organisations with managers that will do everything to cover this ass, so as long as humans are in the mix disasters will happen.
However I reckon nuclear fission also hasn’t had a fair shake. Not nearly enough research has gone into making quality reactors that minimise the after effects and make them safer to run.