I was officially forbidden in my old job to write error messages at 3AM. Code was ok. But text - not after а high ranking client saw an error message. Its good

I was officially forbidden in my old job to write error messages at 3AM. Code was ok. But text - not after а high ranking client saw an error message. Its good that during the meetings with him we both were (in)appropriately vulgar and offensive so only my manager was shocked.