[from
here]
Javert barely gave his surroundings a cursory glance as the door swung shut behind him. The beam of his flashlight clearly illuminated the sinks in front of him - as well as the pipes underneath them.
He wasted no time. Propping up the flashlight so it gave him a clear view of the sink nearest the door, he crouched beside the pipes leading to it and began to strike at them with his bat.