Rival ice cream vendors must have some sort of unspoken code about invading each others space, because this clip shot by in a neighborhood located near West Yourkshire shows how they settle a territorial dispute:

It's like a scene from GTA, only with ice cream instead of grenades. According to the Lancashire Telegraph, the driver of the "Mr. Yummy" truck who claims he "felt threatened" by the "Mr. Whippy" van, and unintentionally ended up breaking the guy's window with a tire iron.  The latter than proceeded to return the favor by crashing his truck into the other guy's van. Investigations are underway, but you have to admit the whole scene is just surreal.