multi-tasking or design centre?

I had a job interview with a company before that was basically "Maintain object oriented c, c++ (about 300,000 lines of code that wasn't documented very well), fpga controllers, design DC/AC motor controllers/hardware to steer solar panels, power supplies, work with multi kilovolt electricity, and bring the boss coffee" and I'm only joking about the last coffee part. By the end of the interview, I found out the engineer who supposedly did all this had died recently and not left much documentation behind. I declined even being considered, since I could only do the C++ and FPGA part and because it killed the last engineer evidently.