I'm a 1st year beek, and I'm trying to decide the best way to ventilate my little darlings. I've read several past posts here and I'm curious about two of the ways mentioned. Thinking about drilling a hole in my med. supers and plugging with corks as needed. If I do this, do I need to worry about mice accessing the hole? Also, have read that some of you just slide your boxes back 1/4 to 1/2 in., but what about when it rains? Could this be a problem? Would it be better to slide one box "over" the top of the other 1/4 to 1/2 in.? Thanks in advance for any sage advice!