Baby proofing

So I have the little plastic caps for our outlets... but is there anything to do for the things you have plugged in? My 6mo old pulled the little hall nightlight we have out of the socket last night. I was standing there & jumped in... but he was eyeing the plugged in monitor in his room this morning & I do leave him in there alone occasionally (for 1-2 min max, while I pee or something) . I thought I’d sufficiently baby proofed, but I’m less confident now. 🤷‍♀️