'Erbert I'm sorry to be the one to break this to you.....

I'm really sorry mate - but you have been using your Izal the WRONG WAY ROUND.

The smooth side is made for a smooth comfortable intercourse with the anal cavity. The rough abrasive side is so that your fingers can get effective purchase and swish and poke around effectively.

I have this from the horses mouth - so to speak.

I conclude by wishing you more happy and stress free wiping experience than life has hitherto granted you.