I’m waiting for a phone call from my sister, who is overseas. Otherwise I wouldn’t bother picking up on calls that leave no number on caller ID.
ring Blocked call. (If I’d been thinking, I would have realized it was almost 3:30am where she is.)
“Hello, this is George Dubya Bush. Blah blah blather bl-” click
That was far more satisfying than it should have been, for a mature person.