I have a controller C1 that have action A11 and A12
and a controller C2 that have action A21 and A22
and a controller C3 that have action A31 and A32.
Supposing I have a request being handled by C1-A11. Within it, we decide the appropriate action to handle it, it can be A22 or A32, and after it something need to be done inside A11.