You're in the city and it's raining and you don't have an umbrella, so the umbrella holding bastards crossing the lights in front of you walk really slowly and you can't get around them. Damn their smug be-preparedness.
Even worse, when they suddenly stop so that all the drippings from their brolly land on your head.
Brollies are especially dangerous for tall people when in it's the short people holding them. I've often had to tip my umbrella or hold it up high above me to prevent taking some poor person's eyes out with the metal bits.
