I got to practice a "stoppie" this morning, as I was leaving the apartment complex. Road clear, I start to go and at that moment an SUV comes barreling around the corner from my left at a good 65 or 70 mph. It's about 350 feet away where they're visible there so objectively you have 3-4 seconds but still, that was one quick stop.
About 650 morning commutes across that street, and that's the first time I've had to abort like that.