How to Use "lunatic" with Example Sentences

1. One lunatic with a gun could have changed everything .
2. If the charges are true , this capable man is a lunatic .
3. How could she explain that the blocks weren 't hers without sounding like a lunatic ?
4. As for her personal safety , she said she isn 't overly worried but does think about what a stray lunatic could do .
5. Imagine the hr director sitting across from you is a lunatic in a bank vault with 10 hostages . Instead of demanding millions and a private jet , he 's guarding the spreadsheet containing the payroll budget .