I'm not trying to worry you but you should never point a class 4 laser at anyone's house or window, you never know what reflective surfaces the beam is hitting inside the house like a mirror or glass objects/ornaments, a person could be in the room and getting blinded and you won't know about it. You could be playing around with that laser one day, then suddenly the cops will show up at your door due to complaints of laser lights coming from your property.
That is so reckless shining a very powerful laser around houses like that, the slightest bit of refraction into someone's eyes and you've blinded someone, plus the danger you're putting yourself in.
Woah dude you're pointing that thing at people's windows if you blind someone you'll go away for a LONG time and you'll be in debt the rest of your life when you get out due to the whole having the pants sued off you.
I would like to add that you should not be pointing that Class IV at low lying buildings like that as it has a NOHD distance of 279m+. I have one of these lasers and have never dared to shine it around outdoors like a pointer. This laser is amazing but hazardous. Have fun but stay safe. Disrespect and these lasers will not be around anymore. Just ask anyone over at Laserpointerforums.com