optimal idiot proofing

rm.sh

function rm {
    if [[ "$1" == "-rf" ]] ; then
        echo "If you really want to delete this, say 'I may be an idiot'."
        read var
        if [[ "$var" != 'I may be an idiot' ]] ; then
            echo "Nope, you didn't write that correctly"
            return
        fi
    fi
    rm "$@"
}