There is nothing funny in what you did, and taste has nothing whatsoever to do with how safe this is. Your arguments are so flawed they cannot even be called arguments. It’s like planting a nuclear bomb in you backyard and saying, ‘see, it didn’t explode and it looks nice.’ It did explode only not YET in your backyard. Please do the mandatory research before making claims.
And how can you claim that no one is drenching their crops with pesticides based on a couple of plants in you back yard?! Are you serious?! Please take a basic course in science to learn what does it take to be able to make a conclusion like that. I cannot believe you are allowed to work as a teacher. This is one of the most horrendous story I came across on Medium.