My middle school was circular with random wings jutting off of it but one day the massive septic tank beneath the school flowed in reverse and just began pumping sewage of who knows how old back out of all the bathrooms within an hour about 4 inches of human waste was on the bottom floor and with the sewage spilling down from the stairs it was just getting worse. They had to close the school for roughly 2 weeks and worked 24/7 to purify everything. We had to make the 2 weeks up in the middle of summer.