Watching the news just now, I was reminded of what an old-time reporter told me when I was a stringer for UPI Radio: "When the riot police charge at you, get your wristwatch off. It's hard to dig those little parts out of your wrist." I recall he said some things about which types of liquor to avoid, too, although I don't recall him avoiding any himself.
Of course, that was back in the "Adam 12" days of law enforcement. I'm trying to imagine how I would have felt if they were wearing full combat gear, complete with Marine Corps surplus pants and boots, and armed with the select fire, short barreled M4 assault rifle seen above. My wristwatch would be the least of my concerns, I think.