The COVID-19 pandemic has generated a new class of people: toilet paper hoarders. Hoarders, you know who you are. But did you know you’re contributing to an impending sewage crisis?

TP shortages are driving many citizens to dispose of “flushable” wipes, baby wipes, napkins and even paper towels in toilets. These items are clogging already overloaded sewer pipes.

Officials in Redding, Calif., recently begged residents to stop flushing shredded T-shirts. (Never underestimate the ingenuity of a desperate American.) People are flushing not only TP substitutes, but also disinfectant wipes used to prevent the virus from spreading.