Gypsum can be a good source of calcium and can be dissolved in water readily.
Queequeg may very well be on the money though and you have nothing to worry about :)
That said you wouldn't kill you plants with a bit of gypsum - however if you have used potting mix there is a very good chance that...
Misshapen leaves can be a sign of a calcium deficiency.
What is in the soil ?
Edit:
Here is a useful pic you should save on your PC you can use to help identify nutrient deficiencies:
You could buy some plastic knives and paper plates ? im sure the school would be cool with plastic knives... if not... what the f**k has this world come to ?
Chilli's help clear congestion and is a very great source of vitamin C. Chilli's definitely help the symptoms of the flu, help to get rid...