My very first involvement with plumbing (before I was in the business) involved a Saniflo.
When Mrs S and I were first married, we lived with her parents, whilst we saved the deposit on a flat.
Her younger brother was just discovering sex, and I took it upon myself to advise on the subject of contraception. What I failed to realise was just how toxic was the combination of Messrs Durex finest, when disposed via Messrs Saniflo's appliance. The capacity of the macerator shaft to accommodate every more stretched rubber is almost (but not quite) infinite. There comes a point when the former surrenders to the latter.
At that point, in an entirely misguided attempt to protect my young BiL from the consequences of his actions had his (devoutly Catholic) parents discovered his miscreancy, I ended up head down in a Saniflo.
One three consecutive Sundays.
One the third occasion, there was a full and frank exchange of views. I may have speculated about shoving someone's over-active appendage directly into the macerator. At my time of life, memory plays tricks. Perhaps I merely gently remonstrated with the youngster.
Who can say?