Thanks, 'cause I (as a civil engineer) was also triggered and getting ready to write a similar response, LOL! For reference to others reading this: fda.gov/…/disposal-unused-medicines-what-you-shou… (TL;DR: there are only a few medicines that are recommended to be flushed, and it’s generally because they’re opioids and the risk to the environment is less than the risk of addicts fishing them out of the trash.)