It may be unconventional, but Arsy has found a unique and perfect way to make hard-boiled eggs. http://www.rubiesandradishes.com/2013/08/08/perfect-hard-boiled-eggs-every-time/
Bad Eggs? How do you know?
Know if an egg is fresh - A very fresh egg will sink to the bottom and lay on its side. A week old egg will be on the bottom with pointy end on top. Three week old eggs will be balanced with fat end sticking up. Bad eggs will float.