>>518931447 (OP)
>blue dye
Only rat traps I know of that are blue are DeCon. That shit is PURE poison on a chemical/pharmaceutical-grade level. It's a super-dehydrant. Basically makes their bodies force out every last bit of water. From their skin to their organs. Turns them into little mummies without all the smell of a rotting rat. And before you ask, yes it works on jews