Your Mum must have read this Watchtower article
w06
1/15p.23par.13DoNotAllowPlacefortheDevil***Because of listening to the Devil and not rejecting his lies, the first human pair apostatized. So, then, should we listen to apostates, read their literature, or examine their Web sites on the Internet? If we love God and the truth, we will not do so. We should not allow apostates into our homes or even greet them, for such actions would make us ‘sharers in their wicked works.’ (2 John 9-11) May we never succumb to the Devil’s wiles by abandoning the Christian "path of truth" to follow false teachers who seek to "introduce ruinous ideologies" and try to ‘exploit us with well-turned phrases.’—2 Peter 2:1-3, Byington.
Dubs that are not computer literate , and that is an awful lot of them, would imagine that Satan would leap out of the screen if they logged on here. They believe that a blood transfusion is a death senteance to Aids or Hepatitus too.