How do you figure out whether a foam firefighting system in an air force hangar is set up correctly and works? Well you turn it on for a few seconds, to make sure it's got pressure and everything. First you set up a scaffolding so you can record the event and show the flow coming out of all nozzles. And then you let 'er rip. After 15 seconds you can see foam is covering all areas it has to, so the test is successful. Shut 'er off. Uh, guys? Shut 'er off? Aw crap. Whatever was meant to shut off...
