It's amazing how bad the hit detection is for the explosive cubes

[Man's Best Friend]

Try to go for the "You Are Terminated" achievement, and the game just won't cooperate. It's bad enough that the bot movement and reactions are completely random, but then the boxes are entirely unreliable too. First, you can't throw them directly at the bots because they just bounce off for some reason. But even if you do hit a nearby static surface, the explosion is entirely unreliable. I've more than a few times managed to catch three bots in a tight group, but the explosion at best only kills two of them. Worst part being that the survivor is usually the one closest to the point of impact.

Finally got it by dropping three bots into the bottom of an elevator shaft and blowing them up there.