jim avila has the story. >>> reporter: welcome to arizona shower door, a sprawling box of a company in phoenix, lined with palm trees, where 45-year-old patrickt his family. that is, until he got a call from his boss to meet him here in this bank parking lot for a special favor. that's patrick's truck. inside is patrick and his boss, fred knadler. and this is their day off conversation -- >> what i need you to do is super secrecy. >> okay. >> go dig a hole in the desert somewhere. >> reporter: dig a hole in the ious?t?ic not to patrick. in fact, it was just the kind of thing he was expecting after five years of working for knadler, a self-made millionaire and owner of arizona shower door, whose corporate credo was as clear as the glass he peddled -- >> this is my company, you work for me, and if you don't like it, there's the door. >> reporter: was he serious? >> oh, yeah. >> reporter: patrick started out as a crane driver but quickly became fred's right-hand man. what kind of boss was he? >> ruthless. >> reporter: so ruthless, patrick says he was working 85-90 hour weeks, but only being paid for 40. >> i missed my kids being born, i didn't t