I find this really puzzling.
I have another student with selective mutism right now, but she is not my first. if I ask her something she can write down the answer but can't speak to me.
I heard on the BBC that the male killer sentenced today gave his evidence like this, as he is also selectively mute - and the judge accepted it is totally beyond his control. I have never thought it WAS under the individual's control, but I just find it very puzzling.
If you can do something, you can do it, but not always!! I have tried to reason with myself that it might be like me pulling my clothes off and parading around topless - I can do it at home, but if asked to do it in the supermarket may find myself physically unable to. I don't know, is it anything like that?
Please if you have any experience or understanding of this condition, I would very much like to hear it