If it's hot outside, we can expect more street violence and way more dangerously drunk people at night. A lot of criminological evidence suggests that crime peaks during the summer. Emergency workers and the opening of Die Hard: With a Vengeance back up those conclusions, and what is this world coming to if you can't trust Die Hard?
I'm based in a large city on the West Coast, and often work the late shift in a bad part of town -- not that my city is overflowing with good parts of town. Last winter, we got a call for a shooting. We get an update en route: unknown age male, shot in the head. We assume he'll be dead when we arrive, but he wasn't. This kid -- he looked maybe 15 -- was still breathing, even after multiple shots to the head, chest and both arms. He had like eight bullet wounds in total. There was literally brain matter on the ground, but nope, he was still breathing.
At which point, lightning becomes a real threat to the EMTs in the event of a Highlander scenario.
We package him up, bring him to the hospital ... and he dies during surgery. Sorry, reality is a bummer. He was just walking home when two guys hopped out of a car and went Rambo on him. That next week, his brother was shot dead nearby. It was tragic but not at all surprising. You learn quickly that if there's one shooting, there will probably be another soon. Shootings travel in packs. It's another reason you pay attention to the local news: if there's been a shooting or stabbing in your neighborhood, odds are more are going to follow.