Questions, patient history, bystandards, family members, quick trauma assesment,ect.
I see where you are coming from ERDoc, but it is subjective to the provider. Some are straight load and go and on the way get all the history and stuff. I myself would rather get that done on scene and decide if transport is necessary.
I know we live in a suit happy world and anyone would be quick to make a buck but I still believe in personal freedoms too. If the patient doesn't want to leave, all vitals seem normal (minus the etoh), and is not a danger to themselves or others I do not see the need to take them out of their home and to an ED where they are just going to sleep it off on a cot somewhere.