A while ago I witnessed something I've never seen before and didn't know was possible. I shot a ball with extreme side english. As the cue ball slowed it was traveling straight at first, and then it slowly hooked a full 90 degrees just as it was running our of gas. This happened on a known, totally level table. Has anyone ever seen this before? I've never been able to recreate it. Could it be that it hit a speck of chalk that misdirected it enough for the spin to take over?