Have no fear if you're walking down Second Street between Folsom and Harrison, just around the corner from SFist World HQ. That long line of fire engines hogging all the parking meters isn't responding to a ten alarm disaster, nor the opening of a new Hooters.
Those big-armed men (and a few strong women) are participating in a high rise training exercise to make sure they're ready for the big ones (fires, that is). The SFFD promises they won't be evacuating any office workers, but they couldn't guarantee that anyone with a thing for heroes won't be a bit distracted if they rush by your cubicle.