I find this rather amusing in a weird sort of way. I admit that this aspect of mollusk courtship was unknown to me.
My French girlfriend, Bernadette, told me of going on a snail hunt with an aged neighbor lady before some holiday when she was seven years old. They collected dozens of snails, and she was entrusted with keeping them in a bucket. She played with the snails and forgot to put the lid on the bucket. By morning, all the snails had escaped and slithered away. She was punished with a spanking and sent to bed without any supper.
Imagine how many interesting customs might have arisen had mammals evolved with a need to fire love darts. Darts from edible and predatory beasts would be collected and used as ornaments, and perhaps human love darts would be venerated, obscene, or both.
