I did something like this once and it backfired. Well not the first time and certainly would not be the last... but instead of suppressing the version response

I did something like this once and it backfired. Well not the first time and certainly would not be the last... but instead of suppressing the version response of our DNS servers, I set it to a Monty Python quote. A customer lost their mind that someone would dare do such a thing and not give the exact version of bind we were running. I told our CSM they could just ask for the version and I would be happy to share. Nowadays that is not so taboo.