I have not heard this story before but I'm left wondering, how? Even if a lizard got into my rice cooker I'd spot it when I put rice in. There's not nooks and crannies for things to hide in.

Those lizards provide luck, that's different.

I guess the queen of the zerg was just a bunch of roaches in a trenchcoat all along.

Seriously though I don't know, maybe the theories from the dark ages are true and insects materialize out of thin air.