When I was younger I smashed snails with two bricks then sprinkled salt on their remains. It was a rather macabre practice back then, but it provided me with entertainment.
Where I live now I don't think I have seen a snail or a slug for quite some time.
HolyPeanuts
How big are they around your area? The biggest one I have ever seen here in Kansas, was half the size of my thumbnail...
That one looks pretty big.....kinda.
liljim
The shells tend to get to about the size of a golf ball... If they live that long, at least.