I guess this really isn't a survival topic but it is a good idea if you have kids or perhaps even for yourself.
There have been a few cases of kids who have been strangled by their scarves, either by it getting caught on playground equipment or in one case , it was a 5 year old when the family's pet dog started pulling on the scarf.
I saw these on a news program, the web-site isn't that good but the idea is that the scarf is too short to strangle you and it secures with velcro , too much pulling on the scarf and it will release.
I am thinking a good idea in the field too.
http://www.seraphimroth.com/