We could debate all day long whether laser Christmas lights, which have become super popular in the past few years, are attractive or not, but there's one unintended consequence that might surprise you.

As with any laser product, there are plenty of warnings on the packages, but one in particular is definitely worth paying attention to, especially here in the crowded air space of the mid-Atlantic.

As the makers of one of the projectors warns consumers:

So, basically, if you have a laser Christmas light projector pointed at your house, make sure that it stays pointed at your house.

With airports of every description, from small local airports all the way up to major military installations, criss-crossing the New Jersey, New York, and Philadelphia areas, you definitely don't want a knock at your door from men in nondescript black suits because of a badly aimed holiday decoration!