Tony Soprano had little tiny "offices", too...at which he didn't really spend much time; in fact he had 2-3 of them! One of his "offices" was actually a storage space at a legitimate business that had to be cleaned out after he was told to go spend some time in his "office"! I get such a kick out of The Sopranos!!
I was in a dentist office once, when a gentleman was leaving and was told his bill was a couple of thousand dollars. He pulled out a wad that would choke a horse and peeled off the amount that he needed!! I must have been staring with my mouth open, because he looked at me and smiled. I immediately averted my eyes....thinking I'm sure my hair was standing on end!! The office personnel told me that he ALWAYS paid like that!! I'm sure their sharing of info was inappropriate.