Screw the personal bubble, I'd prefer it if short people would avoid stabbing me in the head with the ribs of their umbrella. If you can't lift your umbrella high enough to go over the tallest person in the crowd, you should buy a rain coat instead.
I think the other guy was right, I'm being very selfish. It's really my fault that my glasses have been scratched by the ferrules on the ends of umbrellas.
