I noticed earlier in the file that the Javascript had been chosen to be benign. "DROP TABLE users" doesn't seem to fit with that spirit. I'd want it to be instantly evident but also non-destructive, or at least reversible. How about renaming the table instead?

(Sure, people generally shouldn't use this test input outside of a discardable testing environment, but if we could rely on "People shouldn't..." clauses to govern behaviour then much of this list would be unnecessary anyway.)