Brings a story to mind I haven't thought of in a very long time. A country boy friend of mine decades back, new to living in NYC nearly died over Carbon Tet. He rented an apt and, of course, had roaches. Asked some of his city boy buddies what to do. They suggested he squirt Carbon Tet in the cracks - I don't believe it was malice, they never would have guessed he would actually do it. Well, he did and passed out. His GF arrived, giving away a hundred pounds, she managed to drag him into the hall and shut the door. Distresses me I can't remember her name - brave / tough little gal