No I generally have no problem leaving 10-pins, and if I do, I don't mind cos I have a fairly good percentage of sparing them. Just on this night, I seemed to have a little trouble tripping out the 10-pin, no matter how many or light or flush i hit the pocket. It was just that night where you actually knew when you were gonna leave a 10-pin, and 99% of the time I guessed right. But when it got to about 5 or 6 10-pins, I just started thinking it was getting pretty funny. It became even funnier still when my opposing bowler kept leaving 7-pins as well. Well that will do for now.