Yeah, they usually are over cautious about closing the roof when there is a threat of rain. However, June 8th of this year was an exception. I'm not sure if anyone remembers that game and/or date. It's was stifling hot and the roof was closed for the first inning or two. Then they opened it, but not completely all the way. Then we got a text from our neighbors in Waukesha stating that the weather was getting pretty nasty out there. I pulled out my phone and looked at the radar and sure enough there were some nasty storms coming. They kept getting closer and closer an the roof was still open. We started to think that maybe the roof was stuck or something (since it was never fully opened). It even started raining a little before they finally started closing it in the 5th or 6th inning. Yeah, I was at that game. That's another situation where they should've left the roof open the whole time until the rain came. Instead they closed it, opened it, and closed it again. That proved that it's definitely easy to do, so not sure why it wasn't just open the whole time.