When people strip too much jacket off SO cords in cord plugs.
When people cut into conductor insulation when installing cord connectors and cord plugs.
When people replace a fuse with whatever size they can find on hand, as long as it is a higher rating than the one that opened!!!
Fuses installed with the rating label facing the back of the fuse block, making it impossible to see if all (3) are same rating, and correct.
Bosses who have no idea how long it takes to do perform tasks properly, and ask me why it took me so long to get the job done.
