If you shine a laser light directly into your cat's eyes, however, it can harm your cat's vision and can even permanently damage their eyes." If you're going to use a laser pointer with your cat ...

And remember: never point the laser directly at your cat’s eyes. Even toy lasers emit a very strong light, so you should never aim it directly at your cat. Doing so can cause serious vision ...

What happened to the customers (who wore argon laser safety glasses) or the sales critter (who left soon after) is not described, but both may have received some bad news when they had their eyes ...