> at my previous job as mechanical engineer at an HVAC company
> was given recurring monotonous task
> decided to start a sizeable side project to automate it
> people got pissed at me because it worked too well, i.e., took their jerbs
> decided automating things was more fun than actual current job; also, people should be more hyped about continuous improvement
> switched careers into web-development

i.e., my most successful project was the one that changed my life for the better.