Thank you so much! I remember reading this book during my childhood, but the title and author have been lost to me for like two and a half decades.

I actively look for these books I remember little snatches of... I thought this one was a Stanislaw Lem book, and though I really, really enjoyed "Memoirs found in a bathtub" - but that wasn't this. The chant of "sanitized for your protection" during the ritual use of the toilet really sticks out in my childhood memory. I wonder if it will be as great, reading it as an adult?