“Well, you see, if I laugh on that particular day I become so filled with Laughing Gas that I simply can’t keep on the ground. Even if I smile it happens. The first funny thought, and I’m up like a balloon. And until I can think of something serious I can’t get down again.” Mr. Wigg began to chuckle at that, but he caught sight of Mary Poppins’s face and stopped the chuckle, and continued: “It’s awkward, of course, but not unpleasant. Never happens to either of you, I suppose?” Jane and Michael shook their heads.
