Howdy Thomas,
Once the dog is on the move it is toooooo late for recall. They get
what is called "Saluki deafness". It applies to most sighthounds. Too
many people have learned the hard way about sighthounds and cars. And as
S&S said, even people with obediance trained dogs know to put them on
lead.

Frank X. Morris http://community.webtv.net/Sulkhalil/ChimeandFriends