Consider the following scenario:

1. A is blocking a narrow passageway to prevent B from passing.

2. A makes way for C to pass, but C does not.

3. B sees the opportunity to pass and tries to do so.

4. A blocks the passageway.

5. B pushes past A.

6. A puts B in a headlock and puts him on the floor.

What crimes have been committed by A and B?