With the plan to support a "friend" with a startup I started as a consultant which later turned into 3 months of 25+hr work weeks.
The plan was to support the business side of this creative start up and if I was arranging projects I would get something like ~10%, we were going to discuss the details depending on the project. A big project came in with a lot of pressure and of course we didn't take time to set up new agreements. It was an investment and so we "trusted each other" (yes, amateurs on both ends). At one point my former client/boss offered a symbolic amount for a project that