Humor in Heroes of Might and Magic V.

So, I was playing a single-player map. My faction was Dwarves, and my hero was Karl. My army consisted of creatures up to level 6. I attacked a Warlock hero. The battle began. I don't remember exactly what his army was, but I do remember it consisted of two types of creatures. If I remember correctly, the second type of creature consisted of 30 Imps and 60 Griffins. As always, the Griffins disappear on the first turn, and the rest of the army attacks mine. I easily kill them. After the victory, the upgrade window appears. I choose the desired skill/ability and head to my castle. Only on the way, I remembered that I DIDN'T KILL THE GRIFFINS. It seems that when I was finishing off the enemy army, they just got scared and ran away. Hmm, this is the first bug I've encountered in the game...to be honest.