I saw a college baseball game where a batter struck out twice in one at-bat. It was Kutztown State v. Albright College in Reading, PA about 5 years ago. The batter, a back up catcher, struck out, but stayed in the box, apparently unsure of the count. The scoreboard cleared the count. And the batter continued to bat whereupon he struck out again and took his seat. The next batter flied out and the Kutztown team headed off the field, thinking that there were three outs, which the scoreboard showed.

Albright, whose leadoff hitter was a runner on first, rightfully claimed that the inning could not be over as they only sent three batters to the plate and one remained safe on first. Thus, the inning continued with the umpire and Kutztown coach embarrassed.