So, I got certified as a backflow tester a while back. Apparently, some people make home enema systems that hook directly onto their sink taps. They are always dummies so they don't attach a backflow preventer and sure enough leak a bit of anal backwash into the system. :)
"Ma'am, we got here what we call a 'category 5' and this usually means someone has been running the plumbing up their butt. Ma'am, have you been running the plumbing up your butt? Fortunately, we have this brochure...*"
* I in no way know what your job is actually like.