I have had my hives for about nine months. Started with five, now have three. Anyway, two of them have been building lots of comb and storing honey BETWEEN the frames of the first and second story hive boxes. When I go to inspect the hives this causes problems because the honey spills out and bees get quite excited and somewhat mean. Also it's hard to get the boxes apart and I fear starting robbing. Is this a normal thing? What should I do when it happens?