Unfortunately, due to living situation, I used to cycle alot in the city, and in some areas not so nice. I was riding with a friend of mine named fred, very solid rider. We used to like one of the trailer-ish areas as it was kinda built like a nice circular crit with less traffic than the city streets. But that area was kinda rough...nice ride going until we heard something that would terrify any cyclists...a large bang of a screen door being knocked open and a child screaming "No cujo nooo!!!"....we turned around to see a huge rottweiler with hungry eyes streaking at us. Thank the Lord above we had a good jump and we peddled at a blue streak that woulda smoked lance on any mountain!!! After the beast finally gave up, we both dismounted, layed in the grass and made sure rest legs, heart and nerves....I've been chased a bit, but that was the worst beast that almost ate us for sure