If you can't say something worth reading, shut up. You may think it was over reacting but you would be the first person to complain if it had been something dangerous and you had been exposed to it.

They did the job they were hired to do and good for them. The next time, it may not be something so harmless. You may be sitting in an emergency room, waiting to see if you have been exposed to something bad, wondering which lawyer you are going to call to start the lawsuit against the city for not protecting you.