The Hero's had an encounter last night were they look 1 look and my silver razorwings and ran away. There doesn't seem to be any downside to them doing that, seems a bit wrong. If they run away from a dungeon they are locked out, but if they don't feel like an encounter the OL gets nothing. Should get some CT for them hightailing out surely.
If the OL creatures run away the Heros get a reward after all.