I always have a contract when I teach my classes or consult. I always protect my IP. They can pay me for ideas or coding, but I only grant full ownership to IP

I always have a contract when I teach my classes or consult. I always protect my IP. They can pay me for ideas or coding, but I only grant full ownership to IP that pertains uniquely to their business. Anything “generic to software testing” is an idea I own and grant them a non-exclusive and perpetual license to. I also push back on drug tests and insurance requirements and background checks, although for the right money I will relent.