When i was in India i bought a can of 'HIT' It's for killing flys/mossies but it's more like a can of chemical warfare. Saddam would have killed twice as many Kurds with this stuff
A couple of squirts in the bathroom,shut he door for 5 mins and the cockroaches were history. I dread to think what is in that stuff.
(the cockroaches in that vid were tiny! I've never seen anything like the ones i saw in Inda, they were absolutely massive)