Shape-shifting snake that disguised itself as computer cables (usually VGA) and would bite you if you tried to pick it up, but it wasn't poisonous

Called in an expert, they pointed out that the snake could be brought to feral court, but "feral court is kind of a hellhole".

The snake at some point turned itself into a plump mouse instead, and sat there looking cute and innocent in what looked like a tiny lemonade stand.