I had the special problem, that in a "desktop-first" responsive webdesign project (I know, bad idea.. ), there was a shopping cart-like element in a very narrow column (4 columns in a 12 column total grid). It was titled "Your Shoppingcart" and the customer really liked the pronoun. But in tablet view the two words would break into two lines, which we'd try to avoid.
So I came up with two possible solutions:
a) Truncate the personal pronoun in tablet view. like in my example: http://voodoocode.de/rwdtest/index.html
b) Use a smaller font size for the shopping carts headline. example http://voodoocode.de/rwdtest/index2.html
Which approach do you guys think is the better one? Is the personal address to the user an important thing? Or is best possible readability more important?