What would I do if someone took credit for my work?!?!

Hello everyone! If someone were to take credit for my work I would not be a very happy camper! I would be very upset and would try my hardest to let everyone know that it was my idea. Of course, they wouldn't believe me because then I would have came out with it first! I would also confront the person that "stole" it that it was my idea and they knew it and now they are trying to make themselves smarter and that is not right at all! It's like stealing money or anything else! I would probably blow everything out of porportion and everything would be a mess! Well that's how I would handle it!