Do not expect traffic lights, marked pedestrian crossing areas, sidewalks, corners, etc. to be respected. Assaults - Moscow is dangerous. This is a fact. Taken in context, however, Moscow is no more dangerous than any large American or world city. We should all be aware of normal common sense precautions to be taken in a foreign environment.
Assaults are unpredictable.
Do not be an obvious target. A specific and interesting variant of assault that should be mentioned is poisoning. Dry mouth, a period of amnesia, significant weakness and sedation are the usual symptoms. Onset of symptoms occurs within 30 minutes of ingestion. If poisoning is suspected, a physician should be promptly consulted.