1. I've done them in english, a-and they WORKED! Gasp!
2. In my house, under a dock, in the middle of traffic, I've never had a spell not work in a certain place.
3. Why are chemicals needed in spells?
Spells don't have rules. And If they did, Its apparent I've broken all of them.
Honestly, Before you say we don't have real spells, I would suggest you talk to the many people here who have had them work.