Small snails look cute but 8-inch snail sounds a bit scary. Also how do they avoid being eaten by predators if they are slow and vulnerable?
Also I recently saw small slugs which were crawling on the sidewalk along with worms who get to the surface after rain. I wonder what those slugs were planning to do given its middle of October and temperature is merely 10°C (50F)?
"but 8-inch snail sounds a bit scary"
Avoid Seattle and the Pacific Northwest.
Some things eat them like opossum and foxes, but the snails spread bad parasites so animals might learn to avoid them.
They can fertilize themselves so you only need one. And they lay 1600 or so eggs a year in batches of around 200.
They are breeding machines.