Having watched a few TV programs in the last few days where the cameras enter peoples toilet/bathrooms, why do people store their spare bog roll(s) om the floor next to the toilet bowl? In one case around a dozen rolls had been taken out of the plastic wrapper and placed in a wicker basket touching the side of the toilet bowl.
Ignoring aerosol fallout from flushing, there is a good chance of amiss-aim orsplash back contamination.