This reminds me of an exchange I saw at work, on our team's chat room. "Bob" called out "Greg" for missing a conference call Greg had scheduled; 10 minutes past the scheduled time Bob said he was leaving, & told Greg to reschedule. Greg immediately replied "I'm here now, I was talking to Dan (his boss)", and it turned into a bit of a cat fight about how often Greg did this, several times already that day, and how long & how many times were people supposed to wait for him. I admit I watched this with some glee as I'd been treated that way multiple times by Greg myself.