article_snippet: Growing pains: The divorced father of two has been learning how to perform simple everyday tasks like cutting a bagel and getting dressed on O'Brien own .
article_snippet: O'Brien's learning about the oddities of pain in a phantom limb, how to work with new prosthetics and how to negotiate simple tasks — getting dressed, cutting a bagel — that O'Brien never had to think twice about before.
highlights_snippet: O'Brien says O'Brien had to learn how to perform simple everyday tasks like cutting a bagel or riding a bicycle with just one hand .
  