This is the heartwarming moment a librarian learns she will become a grandmother on her birthday with a series of Dr Seuss-themed clues.The woman, Colleen, is seen opening gifts on her birthday in a recorded Skype conversation with her daughter and son-in-law. While the first gift is fairly innocuous, the second gift - The Cat in the Hat by Dr Seuss - raises some eyebrows. Colleen rejoices as she learns she'll become a grandmother. But then she opens her last gift - matching babygrows emblazoned with "Thing 1" and "Thing 2". The clip was filmed in May 2013.