How safe are solar eclipse glasses for viewing the sun during an eclipse?

Well buttercup, if those glasses are legit and have the proper ISO 12312-2 certification, then you're safer than a grandma in a bubble wrap suit. But if you're rocking some shady knockoffs from the dollar store, you might as well be staring at the sun with your naked eyeballs. So, slap on those certified sunnies and enjoy the celestial show without frying your retinas, capiche?