I have had my bees for two years now. I only keep one hive at this time. When I first hived my bees they were very docile. I could stand off to the side and watch activity without any problem. Now if anyone is within 100 ft. they are likely to get buzzed. My son was a large distance away last year and got stung four times when he swatted at one. I recently had a cousin stung when he was out in the yard and ran near to retrieve a ball. This was on a fairly cold day, also. I believe the hive did requeen itself this year. I have been told we had africanized bees in our area, so was wondering if this could be the case.