some people are not programmers

and sometimes more English words are worse than fewer. ( That is, of course, why lj has cuts. )

Alas, for some non-programmers even an e-mail which states "no you don't have to do anything, I do" is too much if it has 4 paragraphs explaining what is and is not happening.
If you give an incredibly powerful button to someone who is not a programmer then, no matter what you say, they may just keep pressing that button over and over again. So for that button

• make sure it checks everything it does before doing it, and doesn't do it if it was already done
• make sure it leaves a full log of what it did and did not do