I set the camera up on a tripod with a remote trigger and showed Sam how to push the button (trickier than it sounds because if you forget to un-push the button you take about three pictures a second, which tends to be a little rough on the high-power strobes). Then, I oh-so-cautiously stepped away from the tripod and sat down on the stool.
Well, as you can see, she did just fine! She was even able to coax her sister into the picture (which is a rarety).
The big surprise, however, was that Mac was able to take a picture as well (without walking away and dragging my camera like a dog).