Hi Mom to Hanna,

Here are a whole bunch of great TE threads already written about what to do when chased by dogs:
http://forums.teamestrogen.com/showthread.php?t=32098
http://forums.teamestrogen.com/showthread.php?t=29980
http://forums.teamestrogen.com/showthread.php?t=31204
http://forums.teamestrogen.com/showthread.php?t=12053
http://forums.teamestrogen.com/showthread.php?t=741

I found them easily by using the "Search" link on the top of every forum page.
Enjoy!