Interesting observations, prophecor.
I remember in college at various times one of our roommates would come home completely hammered..and the rest of us figured out we could totally manipulate the guy into various types of moods and antics by playing different kinds of music on the stereo (and videotaping the poor guy, BTW). It's like when you're drunk your real moods and emotions are amplified. Finally when we got tired of the guy we'd put on some slow love ballad and he'd totally mellow out, getting emotional and sitting down--then pass out...