I don't fill my lawn with inflatable Halloween and Christmas decorations.  It's mainly because they're hideously ugly, but it's also because I'm a lazy decorator. 

However, a lot of people disagree with me about this, which is why a lot of people's lawns are filled with inflatable lawn decorations.  Or, more accurately, their lawns are filled with deflated inflatable lawn decorations.  So not only do their lawns took ridiculous because they're filled with $150 pieces of gaudy air-filled plastic, their lawns look ridiculous because they're filled with $150 piles of gaudy plastic. 

I personally believe it should be a civic responsibility to keep these decorations inflated.  If you went to the trouble of buying it and setting it up, you should continue to go through the trouble of making sure it's inflated and making sure it's still standing upright.  If you can't fulfill your end of the bargain, your inflatable lawn decorations buying privileges should be revoked. 

I'd be willing to cut some slack based on manufacturing defects and simple laws of physics.  If your inflatable decoration has a slow leak, that's not necessarily your fault.  So if it's deflated by the end of the day, I'll let that slide, assuming you fill it up sometime within a 24-hour period.  Concerning physics, cold air takes up less volume than warm air, so it's not too surprising to see a bunch of deflated lawn ornaments on the way to work after a cold night.  But since this part of physics is pretty easy to understand (or at least easy to observe), there's no reason why the decorations shouldn't be re-inflated within a 24-hour period of deflating. #psychology