Aside from regular maintenance and repairs, steamfitters get occasional calls to run the tunnels for other reasons. Steamfitters are on call 24 hours a day, seven days a week to deal with emergencies. We got a call one weekend that someone had gone in the tunnels and never came back out. We had to run the tunnels, but we never found anyone. It turned out they were safe and sound outside the tunnels.
Creed recalls an even odder incident.
Two guys had to go in and get three little baby ducks out of there. They carried them all the way down to the river and turned them loose. So next winter, when you see long paths of green through the snow, remember who's right below the surface. It's Rios and his fellow steamfitters, keeping the campus warm.