As I’m dancing in rhythm with the beat, a red plastic cup half-filled and my other hand in the air, I can feel someone come up behind me and place their hand on my waist. I feel their breath on my neck. Chills run down my spine. But I don’t even bother turning around to see who’s dancing behind me. The song goes on and their hands are gripping my waist, and then slowly move upwards. Their hand finds my wrist and he slight...