I do have to say, when a person continues to make 'mistakes' and continues to use 'marketing' to convince more people to give him more money for additional 'fully developed' products that don't work, well, at some point, he's just a thief.
When your "mistakes" kill people, you are more than "just a thief." My experiences with Jan's arrogance and misrepresentation of fact make me wonder how anyone would ever consider paying a dime for his "products". Knowing you WILL replace anything you purchase from him with a proven option should be economically enough to prevent the initial consideration of any purchase.
Ross, I respectfully disagree with you. My interactions with Jan have shown his arrogant behavior, coupled with his past string of failures, to be without conscience.