In article , Mariann
writes

I have a wander in the garden every evening with a bucket ... put all the
snails ans slugs I find in the bucket carefully and take them to the nearby
field ...so far none has made it back ..as far as I know ...

Some years ago someone on this group tried an experiment. He painted the
shells of snails a conspicuous colour and then chucked them as far over
his hedge as he could hurl them. They were back in the garden in a
couple of days!!!!!!

--
Jane Ransom in Lancaster.
I won't respond to private emails that are on topic for urg
but if you need to email me for any other reason, put ransoms
at jandg dot demon dot co dot uk where you see