Since you are all comming back, I'll comment too, I was going kinda downhill, at 60-ish KMH (thats about 38kmh) and a hornet or I don't know what, hit me clean in my neck, the side of the throat area, i had no helmet or anything, it felt like a rock or someone shooting me with a slingshot, I panic stopped because it started being hard to breathe, i put my finger there to check what hit me, then the little f'er got mad and stung me in the throat.. Yep, then i really lost it.. i rushed back home took 2 whole allergy pills (i have to take a half daily) and laid on the bed hardly being able to breathe for a good hour.
So, what did I learn from this? wasps are evil and if I go even faster when they hit me they will probably die and not sting.