Peggy is viewed as a rebel by her mother, who can’t believe she’d want to leave home to live in the mean streets of Manhattan, even when Peggy explains the rigors and expense of her daily commute. Her sister asks if she’s “one of those girls”, but she says it in an affectionate way that shows she does admire her sister’s pluck. It’s nice to see Peggy getting that support. Lord knows she won’t get it from Mom, who equates moving to the city as a guarantee of being raped. Peggy’s ad for a roommate was inadvertently hilarious. Letter perfect and easy to ridicule (She called herself “neat” and “responsible”, not to mention “Margaret”!), her biggest mistake was placing it on the Sterling Cooper bulletin board. Harry, Paul and Ken ran with it and pulled a great prank phone call on her, complete with a script and one of the secretaries as a fake potential roommate. With each scripted flaw (I’m badly burned, I need help in the bathroom, etc.), the boys laughed louder, until Peggy finally heard them and hung up.