To kill crab my dad uses something like this. https://www.homedepot.com/p/Dewit-Junior-Spade-T-Handle-31-3173/302000113 https://www.homedepot.com/p/Dewit-Junior

To kill crab my dad uses something like this. https://www.homedepot.com/p/Dewit-Junior-Spade-T-Handle-31-3173/302000113 https://www.homedepot.com/p/Dewit-Junior-Spade-T-Handle-31-3... He flips them over and cuts them right down the middle hitting both nerve receptors almost immediately. I find it to be fairly humane, and boiling live crab never sat right with us. I doubt this method will be changed in favor of poking them to death nor do I really think poking them is much (if any) more humane. I imagine this could be used on lobster too but we don't catch lobster, so I don't know.