Basically, a machine will pull a new drain under your slab at the same time it is destroying your old cast iron ones. (biggerpockets.com)
Many times they are destroyed by breeders because they consider them «worthless». (austinboxerrescue.com)
Female dogs in puppy mills are bred continuously throughout their lives until they no longer produce puppies, at which time they are destroyed. (AnimalAllianceNYC.org)