1. Don't be a party pooper.

2. You are a party pooper.

3. The other was simply a party pooper.

4. His economic theories, however, made him a party pooper.

5. You can be a real party pooper sometimes, do you know that?

6. One answer to these questions is that nobody likes a party pooper.

7. I hate to be a party pooper, but I am really tired.