The creature that comes out in the sink?

[Kezha]

I went to wash my hands and there was something coming alive it was a black thing what could it be

[FreyaRed]

There are a lot possible insects who spend their larvae phase in water as carnivorous worms. Dragonfly larva but it could be something else. It's possible someone who uses this sink brought insect egg on their hands or with dirty dishes.

Just cook water and pour it in the sink.

[inhua]

leech

[CrimsonAngel09]

A werewolf that lives in the sewers.

[TrillXHippy]

I have no idea

[Anonymous]

Was it a cockroach?