Depends what you mean by discoloured ! Is it injured ? Is it a burn mark ? Need more detail.
Small cages, not being handled enought, not being fed weekly, bad humidity, or to high or to low temp.
I think they are not bad. But killing any animal and making an accessories out of it is really bad.
You can tell if acorn squash is bad by checking for mold, soft spots, or a foul smell. If the skin is discolored or the squash feels mushy, it is likely spoiled and should not be eaten.
corn is not bad for birds
You can tell radishes are bad if they are soft, mushy, discolored, or have a foul smell.
You can tell broccoli is bad if it has a strong, unpleasant smell, is discolored, or has a slimy texture.
Jim says that touching snake skin will bring bad luck.
It is alright to use a heat lamp for a corn snake in combination with a heating pad as long as the snake has a place to go where he can escape both. Corn snakes don't live an extremely high temperatures and do well between 70 and 80 degrees Fahrenheit. As long as he has a place to go that is between or lower than these temperatures he should be fine, preferably a shaded area such as under a crevice or "snake house".
Using a heating lamp for a corn snake is not a bad thing, however not necessary. As a North American species it is adapted to live at low temperatures during winter and high temperatures during summer. During lower temperatures snakes become less active and can hibernate. The addition of both a heat lamp and heat pad won't harm the snake as long as the snake has a place to go to escape both if it so chooses.
You can tell when brussel sprouts are bad if they have a strong, unpleasant odor, are discolored, or have a slimy texture.
yes corn syrup will go bad in plastic...
a snake cant bring you bad luck unless it is a a adder that is black then it is a year of bad luck