You're not thinking of the symbol used in traffic when a truck or car is broken down to warn other drivers are you?
It's a right side up triangle (of course I like to think of it as a Delta), but I can't remember if there is a circle around it or not.
__________________
Fraternally, DeltAlum
DTD
The above is the opinion of the poster which may or may not be based in known facts and does not necessarily reflect the views of Delta Tau Delta or Greek Chat -- but it might.
Threaded Mode
