Small Gripe...

So, there I was riding along this morning when all of a sudden there is this great racket emanating from my rear wheel. Seems a broken piece of concrete had been kicked up into the spokes. No immediate damage done, but never a sound you want to hear. A few miles later and I find myself dodging chunks of chopped up roots littered across the lane, and not exactly easy to see in the dappled sunlight / tree shade. What do these two incidents have in common? They both happened adjacent to where crews were demolishing sections of sidewalk, extracting offending roots, and replacing the concrete. Who ever the contractors are (no markings on the vehicles) they are doing a crappy job of cleaning up after themselves.