Great story, Adrien. I'm so glad they eventually called in beekeepers instead of pest control.
Reminds me of the bees in Jacqueline and Joseph's house at Friendly Haven Rise Farm - though their hive settled in a far wall that didn't drip into any light bulbs. (Jacequline talks about it in podcast 202 or podcast 203 - can't recall which one.)
I don't think there was honey oozing, but Jacqueline mentioned putting her ear to the wall (in the winter or when she didn't want to go outside?) and finding the hive sounds very comforting - it made her very happy.