When someone becomes "tough" and "combative" in an email, but never in person, or on the phone. A false show of digital power and might. A manifestation of their own sense of righteous indignation.
Ninja 1 in an email format: "I asked you for that report last week you never responded, I'm losing confidence in you and your firm & will take my business else where."
Ninja 1 in a phone conversation: "Hey buddy, I know you have been busy, any chance of getting that report any time this week? No rush!"