Just so you know....
I am saddened when I see people with crappy umbrellas. There are larger and stronger umbrellas than the one you're using. They can be yours for less than $30. I mean, you wouldn't believe how large an umbrella can be. Recently, I upgraded to an umbrella so large you couldn't even rightfully call it an umbrella. It's more like a "rain repellant" or a "rain bully" of some sort.
There are umbrellas with wind vents in them so that they don't fold outward in the rain. Yes. This exists. I honestly don't understand why everyone does not have kick ass umbrellas. The government isn't keeping them a secret. The military isn't rationing them for war. You can have one. Just go to the store and get a large, strong umbrella. If you're too lazy to look, you tell a sales rep, "Show me your largest, strongest umbrella." They'd do it for you.
Let me reiterate: A large, strong umbrella could be yours for $30. I got mine for $25. I imagine if you save for a while you could get one even larger and stronger than mine for $35; then we could fight with our umbrellas and you'd win.
I'm just letting you know because, as of right now, my umbrella would OWN your umbrella in a ninja fight.
NOTE: I did a Google search for ninja fighting with umbrellas. Nothing. No where on the Internet is there a picture of two ninja fighting with umbrellas. I know, I'm just as disappointed as you are. Anyways, this is what you get. (Pretend this is you and me and we're holding umbrellas.)