Quote from Barney in Three Days Of Snow
Barney: Ted, have you gone completely insane? We don't want their phone numbers. Ted: [sarcastically] Yeah. I don't know what I was doing. I guess I panicked out there. Barney: When you exchange numbers with a chick you give them the ability to call and cancel. If you set a date without a number, they have to show up. Check and mate! The only digits I need are these. Honka. Ted: Are you still their dad?