HARD TO PHOTOGRAPH

Do you have a person or persons that you just can't seem to get a good snap shot of them?  I do, it's our son.  He's always looking away, looking up, or I get the back of his head.  Perfect example are these three shots.
He's cooking...

Sitting on the couch...

and another one on the couch...

Even on the computer..

As you can see, or can't see is his face.  Maybe it's me or him, I'm not sure.