Dilbert walks down the hallway thinking, "Oh, crap. This is the third time today that I will walk by this same guy in the hall. I barely know him." Dilbert continues thinking, "This is so awkward. The first time, I said 'hello.' The second time we both made those closed-mouth grins and arched our eyebrows. What do I do the third time?" Back at home, Dilbert tells Dogbert, ". . . So I pulled the fire alarm." Dogbert says, "I don't think Miss Manners is gonna back you on this one."