Bingo! Whenever I or anyone airsoft you should always wear goggles as they can take an eye out. As for the "hurt" aspect, its really not that bad. It forms a small welt that goes away after a few minutes and just stings for a few seconds....you get used to it pretty quick. Oh and did I mention...
Gotta say they are alot of fun! I have a couple myself, (AK74, and a G3) and I used to play airsoft pretty frequently in my or other friends backyards.....they are a ton of fun!