I've never had that experience, so I can't contribute anything of value, but...
If it happened here I would be SOOOOO tempted to tell someone "wipe your upper lip"
Please take note that I'm in no way suggesting you do this at home.
If it happened here I would be SOOOOO tempted to tell someone "wipe your upper lip"

Please take note that I'm in no way suggesting you do this at home.