Actaully saw a good tip at a bank yesterday.  They had a sign up which said (more or less) “So we can all have a safe Holloween, masks are not allowed in the bank. Please take your mask off before you enter.”

Brilliant!  What dingdong wears a mask into a bank?  Apparently a lot of people and not just kids either.  So …

You should not allow masks in your office either. Costumes?  No problem.  I love Holloween.  Face paint?  Great!  But absolutely NO masks.