What was the worst tech you ever owned?

If I had to think of the worst tech I ever owned the first thing that I think of were my PC laptops and desktops. My Acer laptop drove me nuts with a bad bios I had nothing but headaches with it. My Dell computer was a waste of money. Come to think of it pretty much all my PC's that I ever owned stunk. Windows was a big cause of that but bad build quality and cheap parts also had their take.