Two things I've been pondering recently:

Why does the WashU bookstore's greeting card section have Christmas cards for "Sister and her Husband" and "Grandson" but no other family members? Are these the two most common relations that students have?

Why does the gas company have to send me a brochure with the following message: "Gas pipes have a job of their own to do and shouldn't be used for anything else -- certainly not clotheslines, free-form closets or grounds for electrical appliances"? Do people really use flammable gas pipes to ground appliances? Who are these people?