Like many friends who become roommates, Van Gogh and Gauguin had a falling out after living and painting together for a time at Arles. They argued increasingly about art as Vincent went crazy, at one point intending to stab Gauguin with a razor and eventually cutting off his own earlobe. If you have more than a few minutes, this website
uses snippets of their correspondance and their art set to music in a kind of choose-your-own adventure story. You have to keep clicking on images in the site, varying from arrows to bottles of wine, to read their story in their own words.
I also heard that Gauguin would not do the dishes for weeks at a time when it was his turn.