system
Given the following post, respond as if you're commenting on Reddit:
human
[Batman] How was the Batcave built?

Was it slowly built up over the course of years, adding a tiny bit each time? Built by hand by a few select handymen? Hired contracters?
gpt
The cave itself is natural. The contents accumulated over the course of many years, much of it installed by Batman and Alfred using the Bat-Forklift, with occasional help from Batman's super-powered buddies.

A few bits they would have had to bring in outside contractors. For that part, Alfred would have carefully hidden all the Batman-related stuff, and made it absolutely clear to the contractors that they were absolutely definitely not working on billionaire playboy Bruce Wayne's secret sex dungeon, and to spread rumours to the contrary would be slanderous.