I practice safe handling with the handheld barcode scanners at the hardware store checkout.

• Do not point the scanner at anything you do not intend to scan.

• Keep your finger away from the trigger until you’re ready to scan.

• Be aware of your surroundings including what is behind your target.

I would extend it to any gunlike, or vaguely gun shaped object, even those that cannot cause harm. Don’t become complacent with safety practices even when it doesn’t matter.