You can no longer boil a lobster alive in Switzerland, unless you stun it first:
The Swiss government has ordered an end to the common culinary practice of throwing lobsters into boiling water while they are still alive, ruling that they must be knocked out before they are killed.
As part of a wider overhaul of Swiss animal protection laws, Bern said that as of 1 March, "the practice of plunging live lobsters into boiling water, which is common in restaurants, is no longer permitted". Lobsters "will now have to be stunned before they are put to death," the government order read.
According to Swiss public broadcaster RTS, only electric shock or the "mechanical destruction" of the lobster's brain will be accepted methods of stunning the animals once the new rule takes affect.
Also at BBC.
(Score: 3, Interesting) by Immerman on Sunday January 14 2018, @05:03AM
Most people don't get a stun-gun shock directly across the brain. And for good reason.
I suspect you don't stop it from squealing, as I suspect that's the same outgassing phenomena as for crab. The point is to disrupt/destroy neural function beforeboiling them alive. Does it actually work? I would hope so, but in a way that's actually a secondary concern. Once you've established that they should get a merciful death, then if it's shown that the specific method used doesn't actually grant one, then you can change the method. Better a misguided attempt at compassion than a ruthless disregard for suffering - mistakes can be corrected.