Patrick and Adi are sewer rats. They pull a plastik thing in the sewer, blow it up and harden it with UV LIght.
It was 1 AM when I got out of my office with no picture yet. Patrick and Adi where standing right in fornt of my office and they even brought their own light. Thank you for beeing there, doing that job and letting me take your picture. Send me an Email to receive your pictures.