Bees!
Dylan and I went out for our walk today during which he decided to traipse along this stone wall. He had gotten almost all the way across when I suddenly heard a loud buzzing swarm of bees. I grabbed him and ran. Come to find out that we had walked across the top of their nest under one of the stone blocks. My land lord killed it but I was amazed at the size so I took a picture. Here’s a view of the entire wall:
