Bad day as a beginning beekeeper. Waited for temperature to rise so I could check hive, then wind picked up. Finally around noon started to smoke hive. As soon as I took top cover off the hivetop feeder, I knew has wasn't going to be a fun afternoon. The bees had built burr comb from feeder to top of center frames. When I took feeder off, two frames came with it. Guess I had left to much space between center frames as they had built a beautiful comb down center attached to one frame. I sat the feeder aside and started cleaning burr comb. Pulled end frame out and started inspecting and cleaning. Nice pattern of brood in 3 middle frames (solid) including burr comb. Pull frame with burr comb out of center. Cleaned bottom of feeder (killing and maiming ~ 8 bees. Then it happened while figuring how I was going to remove burr comb from center frame, It fell off. All havoc broke loose, bees going nuts, me smoking like crazy. I quickly closed hive and put feeder back on. Oops, forget to put wall frame back. Smoke, Smoke, Smoke, open hive put wall frame back in. Close hive, put feeder back on. I figure ~20-30 dead bees, wasted comb outside hive (though they did clean out the food sections), many dead brood, missing queen (never did spot her, justs loads of larvae cells). Probably will wait a week, then go back in and check on queen.