Ted: This is my laptop, a text message. Just kidding. Marshall: He replied! Barney and Marshall are in McClaren's with Robin. Ted (2030): I had proved that the Rule of Three Days was wrong and I went out to dinner with a pretty girl. I have a date.
Plan: A: Ted; Q: Who breaks the "three days rule"? A: Barney and Marshall's "three days rule; Q: What rule does Ted break? A: a "text" relationship; Q: What is Ted having with the girl he just met? A: a cruel joke; Q: What do Barney and Marshall play on Ted? Summary: When Ted breaks Barney and Marshall's "three days rule" by having a "text" relationship with a girl he just met, they play a cruel joke on him by pretending to be her.