No I have not thankfully, I make them just in case of a monster attack in the Everfree forest. also weird things have been known to show up in Ponyville like that Bug bear
Hmmmm I've never thought of plants acting like magic purifiers. Sounds plausible. Magic isn't always behind effects from plants/ potions so I'm not to sure. I've learnt through observation like poison joke having different affects on different ponies ( myself included)and animals. luckily Zecora did share the cure with me
I like science because it provides answers for the world around us. We can use this knowledge to help other living things and to solve the biggest problems in the world