Why did I have to get busted tyre now ( well anytime really ) Just done about 500km travelling through Belgium, doing some different portrait shots in different parts of the country, and now this

That's pretty full on, I was travelling on the main highway at about 120K's an hour, so lucky I didn't cause any major accidents, culprit was a fat nasty looking nail, that started deflating the tyre ( just before it happened I was telling myself that I should check the tyres as the sterring feels it;s pulling to the right a bit) and the more it started deflating the more damage was being done, till bang, too late