Ok. Roborio also fall into ThreadDeath in the battle:
rsalesc.roborio.Roborio 1.2.7 vs penguin.Joker .611wr
It does not happens at 1000 FPS, only if I push the slider to max.
I also see DrussGT falling into ThreadDeath in the battle:
jk.mega.DrussGT 3.2.1 vs penguin.Joker .611wr
It seems that in a pair of bots the most CPU demanding gets the exception.