As I watched my toddler playing on his birthday, I felt a strong sense of guilt creep up inside me. At one point, I worked 12 hours a day and sometimes as many as 16 hours. I realized I was experiencing an enormous feeling of guilt — the feeling of failing as a parent because I wasn't there for my kids. While I saw my tight work schedule as a sprint that would eventually end, my kids only saw me working. AdvertisementI felt "dad guilt" — the dark side of entrepreneurship and many other demanding jobs requiring long hours.

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Persons: Martins Lasmanis, Supliful, Lasmanis, I'd, torturous I've, I've, they're, She's Locations: Europe, Denver