initially some friends (and their friends) planned to be having a lightsaber war at the park with a points system or something for "May the Fourth be with you" day but then there were these younger douchebag kids who were attempting to do that "I'm gonna make fun of you by pretending to like the thing you're doing even though it's stupid durr hurr" thing
So we went into the woods to try and get away from them but then they followed us in and then we (forgot how) got them to leave pretending we'd wait for them to come back and then we took off, I was wearing a tannishbrown jacket and hat so I was basically a ninja, the rest of my friends even lost track of me for a while
it was pretty damn fun, I got to use some of my more complex threats on them, such as the contextually-dependent "If you get close enough for me to touch your penis I'm going to shove it down your throat."

most fun I've ever had outdoors, except smashing the microwave comes close.