Funny and amusing situations...

I was playing some 4fun maps the other day, quick games lasting 1-2 minutes per turn, small size, in GameRanger. It's already a funny experience in itself, but the real kicker was when a player generated 6 Level 10 Marksmen on Haven without a Dungeon (already interesting), but the main thing was when I broke through a two-level Fortress... Instead of getting two Griffins, I got 5! It's clearly something that's been manually tweaked in the game, but the guy is insisting that he's a newbie and has no idea how that could have happened. The game is meant to be fun, and in the end, he lost (although 2 Angels would have been enough), but the question arose - how can you tell if the host is cheating with the map's contents?