I created the images back starting in 1993 with my first image "Navigation".
I have the term "toilygraph" on file with the United States Trademark Office Filed back in 1995 - color photographs of food colors or dyes in toilet bowls .
I created this before whoever you are refering to - does the person have a name?
I don't remember traveling abroad.
I don't think you should acuse me of stealing an idea, especially if you don't know me.