Freshmen in high school...I went with a bunch of buddies to "burglarize" and scare the crap out of another friend at his house late night after the "trick or treating" crowd. It was all going well until a car load of senior football players found us. Turns out, our buddy's sister (a senior) was having some friends over. She was scared crapless and called them over early (instead of the police). These guys chased us for two hours. We were running scared, jumping into poeple's backyards, dogs barking at our heels, hiding in trees, etc. We probably ran more than 10 miles just trying to get away from these guys. Scariest Halloween for me by far.