Head butting

This is Thelma.  

As you can see, she is a bit perturbed.  She is currently in "time out" for head butting the glass on our french doors. 

I've been trying to explain that she will continue to be put back in her pen if she can not accept the fact that she is not an inside goat and quit head butting the doors.  

                                                        Apparently I'm not getting through.