This is what happens when a Roomba gets kicked around by abusive parents—it rebels against society, joins a gang and vandalizes our communities.
Apparently this Roomba has been modified with inkjet printer parts so it can create bitmap patterns on the floor with colored powders. Damn you rebel Roomba! Cut your hair, stop snorting “powder”, get a job and create civilized art like your brother! [Botropolis]
https://gizmodo.com/long-exposure-shot-of-a-roombas-path-shows-beautifully-5246099
