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.
In the rare case where an abandoned yukkuri realizes the severity of their problem, they often realize that they can't survive as strays and attempt to become pets again. Some will try to find their former owner and beg to be readopted. Others will beg on the streets for someone to adopt them parading the fact that they were once pets and often market their former badge (e.g. Marisa was a silver badge and promises to be obedient!). For the most part neither option works and in fact they're often beaten up as noise pollution or annoying pests.
Abandoned yukkuris are often avoided by other stray yukkuris. As former pets, they are often arrogant and entitled and most strays thinks of them as uneasy. Even if they aren't arrogant they lack any survival skills so there's no point in befriending them or accepting them into a clan. Worst of all, abandoned yukkuri often doesn't realize that humans are dangerous (as they were once owned by one) as such they often try to attract humans while strays want to avoid humans.
If a pet yukkuri is thrown out for mating with a stray, their stray mate will usually abandon them as soon as possible (usually immediately after the babies are born) as the only reason the stray mated with the pet is for the hope of turning into a pet themselves. Once they realise the pet is abandoned they have little use for them and would rather seek out a new mate with better survival skills.
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.
