yeah, I usually get chased once per ride, but only a couple of times has the dog been serious, usually they're just looking for fun. Yesterday, I got chased by two little 20lb dogs that seemed halfway serious, didn't care about a squirt in the face by my water bottle so I took it up a gear and left them, it was still annoying. One came a bit closer to my ankle than just a fun chase. On another road a medium sized dog gave a half hearted chase, with a grin rather than a snarl, no barks... started me though because he came up all stealth - gotta watch out for those stealth dogs. Then, two fenced in dogs (big, furry dogs, one german shepard and one husky looking thing) sorta halfway trotted behind their yard fence, but didn't even follow me the whole length of their yard - it was too hot out for them I guess. I especially hate dogs in the dark.. I only choose dog-free routes if I plan to ride in the dark, or start a ride in the dark. Haven't been bit yet, but I have dismounted to get my bike between me and the dog on one occasion.. that was probably the worst situation I had in the past few years. I carry the camera in my jersey pocket with the laniard hanging out so I can grab it out easily. Only takes a moment to stop and grab a few shots, though I usually have to turn around because I see the view, realize it's worth a picture, and have to turn around to go back and get it.