Completely agree about the percentage rates for hits and stuff like that. One of my most frustrating moments as a gamer was playing X-Com: Enemy Unknown and being point-blank range from an enemy with like a 99% chance to hit . . . and missing. And then it happens again sometime later. It's moments like that when you realize that the "random" number generator really isn't as random as you think it is.
Re: complaints about randomness, here's a classic: http://gamesbyemail.com/News/DiceOMatic
Yes, random generators aren’t technically real random. But I ran batches of thousands of torpedo hits and detection rolls and they averaged over time exactly where they’re supposed to be. But the problem is that even real random have odd cases like you experienced. You could even argue that it’s the essence of random. We can’t expect rolls to be always nicely distributed. And our brains have a tendency to remember the few bad ones over the hundreds of good ones. That was the point I was trying to make across I guess. It’s not like the toast always falls on the wrong side, it’s that we forget all the times it landed right.