Chapter 316 Section 4
You can put a box over a bees nest as there is still room for the bees to get
out.
Chapter 316 Section 5
If two people close the door on a deer, but the door could have been closed
by only one of them, it is only prohibited rabbinically.
Once the door is closed, you can lock it.
Chapter 316 Section 6
If a person stood in a doorway to block the entry which is prohibited,
another person is allowed to stand behind him and even if the first person
leaves he is still allowed to be there.