I’ve seen the fun of “prints everywhere” in production when a colleague forgot to remove a “Why the fuck do you end up here?” followed by a bunch of variables before committing a hot-fix… Customers weren’t to amused…
Edit: That was a PHP driven web shop and the message ended up on to of the checkout page
The “gut” might not be an organ but I can’t see a microbe letting go of some tasty piece of food just because it happens to pass from the small incestine to the colon… (wrong terms can safely be attributed to my translation tool)…