It was Spring back at u.a. Class 1-a plus Shinso and some of the pros (Mic, Aizawa, Hawks, Midnight, Mirko and All might) were just chilling in the common room. It was pretty quiet with some music faintly playing in the background until Kirishima spoke up in a sing song tone

Kiri; "If you're happy and you know it clap your hands"

No one claps leaving the room in silence until Bakugou smirks

Bakugou: "If you're sad and you know it drink some water"

half the class freezes

Bakugou: "Heh, checkmate bitches. Drink"