My experience with a few fun DMs is that you have to be really careful with the shenanigans. I'm not surprised at all about the flood that took out your goats. I'm impressed with the restraint demonstrated by your DM in fact... one of my old DMs would have almost certainly done something more damaging first; off the top of my head, good chance we would have woken up to discover that the goats had eaten all of our clothing in the middle of the night.
Or, you know, having to deal with all the goat excrement; or either stopping for several hours three times a day to "pasture" (and having to find a place where the locals will allow you to do that), or carrying grain for 100 goats around with you.
