The system we use to detect the camera target isn't that great, but there's not much we can do to improve it. You just gotta find the sweet spot to aim at certain actors like the ones behind the glass at betting shops. It already doesn't fail instantly, it takes 2 or 3 seconds before it fails (and the text along the bottom of your screen will turn red to indicate you aren't 'aiming' at the cashier anymore.) The slowly putting hands down would be a nice touch I guess, if a bit of work to implement.