I'm usually very, very cautious where signs are concerned, but these images really grabbed me...
What do YOU think?
 
YSIC,
Ira
 
http://ca.news.yahoo.com/video/odd-22186925/volcano-smoke-ring-26299985.html#crsl=%252Fvideo%252Fodd-22186925%252Fvolcano-smoke-ring-26299985.html