Supposing that tinkering includes a fluke that creates a hundred year cycle of deadly corn. This is far from impossible. This is a fairly tame example actually. Imagine what can happen as we screw with the genes of diseases. Finally, we'll bring it back to our realm of the woods.
Sex is often the driving force of technology.
Some of the first life like robots we see will undoubtedly be sex toys. It is not hard for me to picture an entire class of people that takes government provided drugs, is provided by their employers with sex bots and put to work without them ever having the slightest clue that they've lost all aspects of being human. I'm rambling a bit. Just bringing issues to the table, because we're all a part of them. Have a good week.