Haileab Asgedom lived a wild young adulthood primarily due to the lack of parental figures in his life. What did he say was his greatest regret about this period in his life?

Haileab Asgedom is a character in the book 'Of Beetles and Angels'. The book is a story about a young mans journey from a refugee camp to Harvard University. His wild adulthood as a result of lack of parental guidance lead to him turning to alcoholism and becoming a womanizer. As a result of this he fathered children whom he never got the chance to meet.