Vegan Circlejerk

In medicine there is a concept called "implied consent". Suppose you come across a human who is dying, they are not able to say that they would like you to save their life. You are assumed to have consent to try, assuming they have specifically not refused consent (e.g. through an advanced care directive) because there is the implication that they would prefer to live than die.

There is not really a good reason to apply this concept only to humans. For example, if you saw a train bearing down on an oblivious wombat moving the wombat off the tracks (or scaring them off or whatever) is obviously something you should try, despite generally having moral reservations about interfering in their life, because wombats generally aren't trying to commit suicide.

We can assume most abandoned animals that were formerly pets (or in entertainment industries or whatever) would like to go on living given that they continue to try staying alive. Although approaching that as ownership is definitely non-vegan, like if you take one into your life with a mindset that you can just stop caring for them or sideline their needs when inconvenient that is not vegan.