Donal asked:
Which is more abrasive - Sand, or a cigarette butt?

Cigarette butts kill wildlife...they're nasty...foul....and people who don't
dispose of them in the proper receptacles are cretins...
--
katysails
s/v Chanteuse
Kirie Elite 32
http://katysails.tripod.com

"Women and cats will do as they please, and men and dogs should relax
and get used to the idea." - Robert A. Heinlein