Once I was working in some really rich clients' HUGE garden. One day I was in a part where there was alot of vegetation to clear out and I heard this loud buzzing but I couldn't see anything! This went on for a few minutes and I was getting really worried - it kept getting LOUDER. then I noticed all these bumble bees flying low to the ground - I was standing in the middle of their nest, crushing the life out of their babies - yet not one stung me. I moved to work elewhere...this family had so much land they could keep that part wild, so I told them about the nest, and because they were good folks they let it be. HAPPY ENDING FOR ONCE.