Outside our summer Cornell residence hall, a group of high schoolers chase each other with water balloons. They laugh uproariously when their attacker misses and viciously when they instead soak their targets. A girl in the program and I look at each other — we were merely acquaintances at this point — and arrive at the same conclusion: these kids are having a blast. “We should go join them,” I exclaim to my friend. She remains expressionless and says “I don’t fit in with them.