Definition: Given the Question and Answer pair, detect whether the answer is acceptable or not. Denote acceptable answer as "yes", otherwise denote as "no". An acceptable answer is consistent with the context in question, detailed, long, and uses general knowledge of English. Answers that are not definite and suggest a variety of options are not acceptable answers.
Input: Question: Is it improper to say "me and Person X"? I always hear it said as "Person X and I", but have personally learned to say "me and Person X". Is there a difference between the two versions and is one of them incorrect? "Person and I" just sounds more formal to me. 
Answer: Yes, placing yourself at the beginning is improper grammar. As far as why, I don't know. It just is. To me, it always sounded self-centered to begin a sentence or list of people with myself. I imagine that is the genesis of the rule but I have no idea. It makes someone sound pretty uneducated to do it, though. "Me and Leon" typically followed by "was..." seems pretty common among those with poor grammar.

no