I've had it happen more than once. The first thing I learned was to be careful using split quarters. They flop over so easy. I like to use split halves for cross piling. In my woodshed I have nine foot high piles and no matter how carefully you stack, a nine foot tall cross piled end is very precarious. What I do is to tie in the cross pile at about mid height. I leave some pieces twice as long and lay those in lengthwise. Here is a photo that shows the tied in long piece behind the tractor's lever. Ja, I know I said I like to use split halves but the first course shown is actually catching the corner post a bit.