Surely an umbrella is the worst designed thing there ever was?
Problem 1. They don't do what they are designed to do. If you've been out and about in the UK today and used an umbrella I bet you still got wet. And not just a little wet, quite a bit wet. Wear a hat and buy a waterproof coat. Much better.
Problem 2. They break, easily, all the time, Look at that picture above. Look at this Flickr set. How old is the oldest umbrella in your house? Over two years? Thought not.
Problem 3. They're aggressive little beggars. Nothing frightens me more than a narrow street packed with umbrella users. I raise my hands to protect my eyes and I quicken my pace...
Umbrellas. Dreadful things.