Carcinogens.

"You can't let your dog crap on the sidewalk, but it's perfectly acceptable to blow carcinogens down other peoples throats. Somewhere along the way, smokers exempted themselves from the social contract."

- from "This Is Where I Leave You" by Jonathan Tropper.

I have had a marvellous time reading this book. Now that its over I feel a little lost but I'm excited for whatever I read next.