Tycho always dreamed of going to "The University", but when his family found out he meant Spa University, not Ba Sing Se University , they disowned him, and refused to help pay his tuition. In desperation, he fell into a life of crime.
He finds a friend in Iroh when he attempts to attack the old man, and Iroh calmly helps the criminal with his fighting stance. He then tells Tycho that he does not seem to be the criminal type, and has tea with him. He shows faith in Tycho and raises his spirits before sending him on his way.