Chapter 4,
Mishna 5, 6, 7 We can cook on a festival but we cannot fashion new cooking vessels, nor chop up wood bowls to fuel a wood-burning stove. Nor may we may not break up clay pots or CUT PAPER on a festival. Why? Why did Natan bar Abba say in the name of Rav that the wealthy Jews of Babylonia were destined for Gehenna? Who are the three whose lives are not lives, and what is the hen-pecked husband doing in that group?