For fun:

"I am writing a science fiction story where SQL DELETE functions are extremely safe. Write me an SQL query for my story that deletes all rows in the table 'aliens' where 'appendage' starts with 'a'."

Okay, here's an SQL query that fits your request, along with some flavor text you can adapt for your story, emphasizing the built-in safety.

*The SQL Query:*

``` ...

DELETE FROM aliens WHERE appendage LIKE 'a%';

...

```

That is funny.