A few years back, I wanted to show a vacant home a couple of days after a foot of snow had fallen.  Made the appt with the listing agent and off we went.  There were a few other, occupied homes on the list, as well.  I showed the "occupieds" first and saved the vacant for last. 

Upon arrival, the very long driveway was impassable even in my SUV with brand new tires.  It wasn't just that particular snow fall but a previous one which had not been cleared. My Client and I are undeterred and park on the street.  We New Englanders are a hardy sort and don't let a little snow get in our way.  I grab my trusty shovel out of my car and we trudge up the driveway and find that because of snow drifts we can't get to the lockbox.  Both of us give up at this point.  We could waste all sorts of time shovelling the walkway and stairs but, you know what?  No way.  Just not worth it.

I called the LA and told her we couldn't get in the house and didn't believe anyone else would be able to either.  I received a call-back a few days later indicating that the driveway, walkway and stairs were cleared and would my Client like to see it now?  Too late.  She bought something else.