If they are worried enough (that their boss has sent them a report to be checked by 4:30 or else) to open a doc in a mail, then they are worried &#x2F; dumb enough to click through the warning (NB I comtract in Fortune 500 and every time I open my own excel file on my own desktop I have to click through three yes&#x2F;no.  It&#x27;s no longer a defence)