I was watching my brother play D2 a while ago. He was up against the Limefrost Spiral boss in level 16, and, as usual the boss utterly annihilated him (we didn't know we had to use matter weapons at that time.) The wierd thing came after his ship was destroyed. An Omega Defense spawn came into the midst of his drops, vibrated almost like it was crying, then blew up - with the same explosion as the earthshaker missile.
Do omega defense spawn always become depressed and suicidal if the player dies before they kamikaze? We've been able to reproduce the crying part, but not the explosion.