Procrastinating on writing a ten page paper, due tomorrow

You know how when someone is pouring their heart out to you, and you are really trying to listen, but then your sister walks in the room with a wire butterfly sticking on her head and it's really funny and you start laughing inappropriately and then you feel bad, even though you can't help it and you really do care about your friend, but it's just really funny because you definitely weren't expecting your sister to put a wire butterfly on her head, especially late at night?