I know it's a silly one... but it really bugs me.  I can't stand people who water their sidewalks.  You know what I'm talking about don't you?  The people who put a huge sprinkler out, but don't take the time to adjust it, so not only do they water their grass, but they soak the sidewalk, and anyone walking by at the same time.  Do you think your concrete is going to turn brown over the summer?  Are you hoping the cracks will grow over?

I know I'm not going to melt or anything, but when I'm going for an evening walk to enjoy some fresh air like I did last night, I'd rather not have to constantly walk around sprinklers every third house, or do the stupid timing dance where you wait for the sprinkler to get to the far side, and then run down the sidewalk before it comes back.