Firemonkey, they're chewey little suckers...
I found out a couple of years ago that amazingly enough I seem to be allergic to snails (massive swelling etc.; doctors get involved with shots!)
So I don't eat them anymore, have to say that they taste like....GARLIC with cheese sprinkled on top. So I haven't had them plain (I reckon they have a subtle non-descript flavour). Isn't the thingy in a bottle of Tequila a worm; looks like a cousin of a witchetty grub to me!
Are Sea Urchins considered to be bugs (more like crab I reckon) I had those as well (don't ask I was in a Club Med in Africa and the French love them). Wouldn't have those again either fairly gross when you think about it (and especially how they eat them........)
I still think that Dennis delicacies are in a different league!