robots taking over the world, ever founded in reality?

as 1 of my hobby is design & build robots & doing research on todays technology. Yes, robots may eventually take over the world. But we wil hav plenty of warning. Right now, robots hav the intelligence of a cockroach. A "retarded stupid cockroach 小强" Our most advanced robots take about six hour jus to walk around a strange room (the automated vacuume cleaner for example). It may be years to decades b4 they r as smart as a mouse, then a rabbit, then a dog or cat, and finally a monkey. By the time they hav the intelligence of a monkey, they can b dangerous, since they wil hav plan or agendas of their own. But we wil hav plenty of warning. By the time they are as smart as a monkey, I think we should put a chip in their brains to turn them off whn they hav murderous thoughts. The key is that we will have plenty of time b4 these robot creations become truly sentient and conscious, wit their own goal & desire.