When I was in the taxi from the airport to the hotel in Vienna, all of a sudden the taxi driver seemed to get a bit of congestion and started trying to hock a loogie (you know that snorting sound when someone is trying to clear snot from their sinuses?). Well, the guy must have gone on for a solid 10 minutes of snorting, hocking, hacking, etc.--I was really afraid of what he was going to eventually cough up, but thankfully when he dropped me off he was still working at it.