As a runner I often use Callahan as an alternative to the roads. I've observed that many dog owners/walkers do not have full control of their un-leashed pets. As a result I've been chased several times, forcing me to stop and walk. Also, because I have a fear of dogs in general I find I'm more at risk of being bitten. I also notice that some people bring 3-4 dogs into the park at a time and let them run free...how can they possible have contorl over them.