More on picket lines?

[Susan Evans Garlinghouse <suendavid@worldnet.att.net>]

Continuing the picket line thread, what if there are no trees available
in the area to attach one end of the picket line to---what then?  Is
there some alternative that you can bring with you and is still safe?

Have to admit, I like the idea, just not sure of the details...

Susan Garlinghouse