When the owner of a pet yukkuri has left or thrown out their yukkuri, who is now a gutter trash (or wild yukkuri if it was abandoned outside a city). Can also refer to a yukkuri parent(s) disowning it's own child.
Abandonment by humans often occurs when pets disobey their owners or turn into spoiled shitheads who insult their owners. Most of the time, reason for abandonment is having children (whether the partner is another pet or a stray) without permission.
In most stories, yukkuris often refuse to accept the fact that they are abandoned and believe that their owners will take them back. Some especially scummy yukkuris often insult their owners and in their delusion, believe that their owners will regret their decision and take them back. This, as you might expect, never happens. Yukkuris, very rarely, if ever realize their mistake. Since pet yukkuris are domesticated and have no survival skills, abandonment is most of the time, considered a death sentence for former pets.
If a pet yukkuri is revoked of it's "pet" status but isn't thrown out (e.g. turned into a compost) then use demotion.
