Palytoxin isnt a joke but I do tend to joke a little about how prevalent its become over the last 9-10 years of people freaking out about it. I will not joke here. If you dont know look it up as you have said. Good job in your willingness to research it. Wear ppe and follow all protocols involving its use. Get a hammer and chisel, break that part of the rock off or remove the entire rock. Keep them out of reach of children and pets. As for disposal I am not 100% sure how to go about it exactly but I would put them in a container wrap it in a bag or plastic and throw it away. May help to put it somewhere "safe" and let them dry out and die first.