Why do Girls scream?

I was doing some homework in Emily's (a fellow RA) room with Chris and Emily. At about 10:37, we heard screams coming from down the hall. Emily and I look at each other and with the same look on our faces (the are you kidding me face). We thought that it was just a spider or an ant. Chris rolls his eyes and says "I am not killing anything for those stupid girls." The screaming continued, so Emily and I decide to go make sure everything is okay. We located the room of panicked/laughing girls and asked if everything was okay. The panicked girl in the room explained that she thought she had been shot. Her roommate and the other girls in the room erupted into laughter. Apparently, someone was outside in the quad and had a green laser pointer and had shined it in their window. The laser landed on the girl and she started screaming, which caused the other girls to scream too. Sadly, the girl had not been shot and luckily we did not have to kill a mouse or something.

Being an RA=priceless