From The Drain

In the not-too-distant future, two fully clothed men sit in a bathtub at a home for war veterans. After a few minutes of not saying anything to each other, one of them breaks the silence by saying "do you come here often?" The first man introduces himself as a secret agent, while the second man introduces himself as an expert on chemical and biological warfare. They discuss changes to humand and plant biology caused by chemical warfare in some un-named recent war.