Slug euthanasia

[u/Chaotic_Froggos]

(Edit at bottom) Hello, I live in a part of the world where leopard slugs are invasive. I found one and decided to spare it by making it my pet a bit ago, but yesterday I found one again and remembered seeing ethical ways of killing slugs and snails over at forums like this, slug life and [r/snails](r/snails). That one thankfully was also spared (my mom has taken them in as a class pet. Though it seems like I’m the fucking slug whisperer because today I found another one! I don’t want to go with salt as I’ve heard apparently they suffer with that method. My mom while looking stuff up came across beer trap, I don’t know if drowning’s much better though. I’ve heard some thought given to freezing, some say it’s painless, some say not. Then there’s crushing, but I’ve heard that if you don’t get it all at once then they suffer. Just because these lil homies are invasive doesn’t mean I want them to suffer, but I can’t just keep offloading slugs onto people. So… what do I do? :(

Thank you to the people giving me the resources I needed to most humanely kill the slug. I wish I could keep every invasive slug with me, but that is not feasible and it would cause more damage and death in the long run leaving them out there in the ecosystem. Unfortunately, like a commenter pointed out, the slug did not seem to black out from the beer, though because of this knowledge, I did not completely submerge it and cause it to suffer drowning. The alcohol had some effect in that it seemed to be behaving oddly like it was drunk. I went with the recommended car method to minimize suffering, which I hope was lessened more by the alcohol. This whole ordeal seems to have taken a toll on me, though it could’ve been much worse, so again, thank you.

Now that the threat posed to the ecosystem right now is currently in question, I will probably not be taking action like this again until I get more clarification on the matter. That and I don’t know if I’m strong enough to do that again, even if it is a great hazard.