1. I will double check the money and will return if there is extra.

2. I will smile to that guy and will apologoize for not remembering him.

3. Will make sure first that I am using the right key to open my own car and if it is all ok but still not working I will call one of my friends to get drop me at home to find my spare key.

4. I might take it and give to a responsible person of the Cinema. Sometimes I will leave it there.