If I read that right, the employee has exclusive rights to a computer program (s)he creates, if the idea didn't even partially come from the company and company resources weren't used. That's pretty standard in the industry. Even using their electricity would give them the right to claim the program. But first they would have to prove you used their resources to create it. Even with security cameras, I'd think they would have a tough time proving you worked on creating a particular program at work on your own time. However, considering everything, even here, if you have an idea for a program develop it at home. If you don't have electricity at home work on the laptop until the battery runs low, take it to work, plug it in and work exclusively on company business. You can prove you used it exclusively for work and they would have a tough time proving you were stealing electricity to charge your battery.