See, but they think it's a kindness, and that they're doing the responsible thing by not leaving their animals behind to suffer.

What scares me is the potential this has for turning into another Jonestown-type thing, with someone deciding that the way to bring about the Rapture is by killing themselves and their families like that that group that committed mass suicide when the Hale-Bopp comet came 'round in the 90s. Or that believing parents will murder their non-believing children because, like the true believing pet owners, they think it would be a mercy.