When shearing a bee nest, the bees sometimes immediately leave and go back in the nest

The Bug

When shearing or bottling honey from bee nest, the bees sometimes immediately leave and go back in the nest.

 

How to reproduce

1. find a bee nest with bees inside, ready for shearing or collecting honey
2. shear or use a bottle on a bee nest
3. immediately see that the bees go out and back in the nest.
   ( if the bees come out of the nest try again, it happens! )