The MOB (mother of the bride) recommended this book to me, the MOG, a couple years back, and it blew my little mind. Turned out snails tango together on the edge of the tank. They are polymorphously perverse.
A snail is often out exploring the sidewalk on my short morning journey from car to workplace. At the end of the day going back to my car I feel sad if I find the snail squashed. So today I set down all my stuff and got almost to snail level. It was headed down into the sidewalk crack for breakfast.