I agree with looking before you sit, but the rule in my house is to put the lid down; not only does that stop the 'explosion' of germs, but it means everyone has to lift something up when they start, and put something down when they finish. Just seems more fair to all concerned.
"No-one who decides that scientific evidence is not for him and that his own experience or the stories of others is the be all and end all of deciding what's true ever has the right to call people searching for reliable, repeatable evidence narrow-minded. That is hypocrisy of the most laughable kind." Derren Brown - Tricks of the Mind.
