question:  Why did Kalvin continue researching on his own at home?
context: Kalvin Feetch shrunk visibly. "But Mr. Piltdon," remonstrated Feetch unsteadily under his employer's glare, "don't you remember? Four months, Feetch! I want it completely developed, engineered and tooled-up, ready for production. "But Mr. Piltdon, four months is hardly time enough for development, even with an adequate staff. I've been trying to tell you for years that we're bound to fall behind because we don't have enough personnel to conduct research. A designer had to dream at his board, investigate, search, build, test, compare, discard. He had always wanted to devote all his time to research, but Piltdon Opener had not given him that opportunity. Twenty-five years of close supervision, dead-lines, production headaches, inadequate facilities and assistance. What had happened, to the proud dream he once had, the dream of exploring uncharted engineering regions, of unlimited time to investigate and develop? Ah, well, thought Feetch straightening his thin shoulders, he had managed somehow to design a few good things during his twenty-five years with Piltdon. Since the early 1980's the schools had been turning out more technicians than industry could absorb. Well, he had to start— "Chief," said Hanson a few weeks later as they entered the lab, "I'm beginning to wonder if the answer is in the hand mechanical type at all." "We must work along classical can-opener lines. They began testing, Hanson operating the openers and Feetch clocking. Twenty-five years of your life you put in with Piltdon, and he'd fire you just like that if you don't do the impossible. "I drew my pay every week so I suppose I have no complaints. Eleven experimental models designed to date. Nine completed and tested, two in work. The machinist departed and Hanson locked the opener on a can. Several days later, however, Piltdon himself charged into the drawing room and slapped Feetch heartily on the back, causing him to break a pencil point.
output:  He wanted to better understand the technology and create a solution.
options:  He wanted to be sure it was safe.  He needed to work extra hours to meet the deadline.  He wanted to patent the Super-Opener idea for himself.  He wanted to better understand the technology and create a solution.