From what’s been said so far, I feel my public loo procedures are reasonably normal. Anti-backing the seat provides some chemical protection from nasties, plus the hand towel used to wipe the seat then acts as a splash back suppressant as it sits in the bowl prior to “opening the bomb bay doors.”
As for the handtowel on the door handle, surely it makes perfect sense. The door handle is probably the filthiest aspect of any public loo facility.
I am indeed sane and claim my £5 voucher off (of) my next purchase of Domestos*
other bleaches are available.