How can you use the word maniac in a sentence?

Here are a few ways to use the word "maniac" in a sentence, with varying levels of intensity and context:

Neutral:

* "The comedian was a complete maniac on stage, bouncing around and making everyone laugh."

* "She's a fitness maniac, spending hours at the gym every day."

Negative:

* "The driver was a maniac, speeding through the streets with no regard for other cars."

* "After his break-up, he became a manic, sleeping very little and talking incessantly."

Figurative:

* "The dog was a maniac for treats, jumping and barking whenever he saw the treat jar."

* "The city was a shopping maniac, with stores open late and people rushing around buying gifts."

Note: "Maniac" can be a strong word with negative connotations. It's important to be mindful of the context and your intended message when using it.