" A minimum of three and a half hours. Probably closer to five.” The vent’s valve mechanism was meant to be serviced from the other side. It took half an hour of fighting to find a decent angle with the wrench and remove the bolts. She finally managed to tug it loose, at which point she had to spend another twenty minutes using her torch to cut the damned thing into smaller pieces so she could get it out of her way. "
― Jim C. Hines , Terminal Alliance (Janitors of the Post-Apocalypse, #1)