My spouse has this problem. Then again, I often have a runny nose Just Because, so I confess that our family is not necessarily shy about the occasional nose-blow at the table (didn't we have a column about this? Oh, here. My general view is that as long as the, erm, activity is relatively quiet and not a great big honker, it's okay, but runny noses are not one of my squeamish points, so I freely acknowledge that YMMV.