Our conversation came to an abrupt end when George burst into the room.
Assume this is what Ronald is saying to tell me what he had been through yesterday. He was talking with Christopher in a room, which is referred to as "our conversation" above. All of a sudden, George burst into that room, which caused that conversation came to an abrupt end.
When Ronald is telling me the story, I was not in that conversation whereas he uses "our conversation", where "our" obviously does not include me. Is it a use of "our/we"? When it would confuse anybody, it is safe to use it.
In contrast, if a young lady talks to me "we had a baby", although that doesn't confuse me, it might mislead someone else, so I will say immediately response "I never did anything to you".
Is there any other typical situations regarded as safe?