It is not possible to be physically transformed into a cabbage or any other inanimate object by clicking a link on a web page.
With this in mind, please do not convert other people without ensuring that they understand fully that "turning into a cabbage" is not an actual physical transformation.
I added this warning to the page after receiving the following email:
And we would not want the next generation growing up with a lifelong aversion to cabbages, would we?
Please obey the new cabbage conversion guideline: "Conversion with Consideration"