a friend once got me a job interview with his company. he listened into the interview, and i could hear him audibly gasp when the interviewer asked, “why do you want to work for us?”. I replied plainly, “To make a living so that I may pursue my real goals.” I didn’t get the job…
Not a plumber but worked with one for 3 months. the urine seemed to be the worsg thing in the pipes. the solids settle out in the trap and elbows, building into a cake of urea/phosphorous cemented to the pipe. this is only anecdotal.