We call it a Snot Rocket. I have done it many times. Only when there are no tissues (or anything suitable around) and only in private. And definitely not in the presence of a lady.
There are a few acceptions to this rule. When racing in an Ironman (triathlon) race for 10-14 hours (2mile swim, 90mile bike and 26mile run) anything goes. That includes many bodily functions that involve mucus, saliva, urine, etc.
#1 rule in triathlon. Never touch a triathletes bike. They just spent 6-8 hours on that thing without stopping for a bathroom break while consuming several gallons of liquids.