And I know that might sound abhorrent to some people. They would think of that as "sneaking around", eh ? But no need to think of it that way. Instead, it's no different than the .... proper timing discretion you would use to choose your timing as to when to pick your nose. You choose discreet polite timing, "so as not to offend the squeamish". AND HAS NOTHING TO DO WITH "legal" vs "not legal".
