OT: also on 3 outs
By my count you could get up to 8 outs in a half inning if we are being loose on definitions.
Batter A) out[1] by any means
Batter B) K[2] dropped by catcher, advances to 1st
Runner B) steals second
Batter C) K[3] dropped by catcher, advances while B->3rd
Runner C) steals second
Batter D) K[4] dropped by catcher, advances to 1st, B/C hold
And now. the final batter hits a long flyout[5]. In the confusion with all the K's all 3 runners cross home. The fielding team goes to 1st for the the real third out[6]. But if the fielding team were to walk off then, 2 runs would count. So they throw to third an appeal that B left to early, he's out[7], Repeat for C, he's out[8].
Of course it's a lot easier in the biotech analogy world, How many outs has Ampligen had?