Hilarious!

Shortly after, mothers and fathers were urged to leave campus.

Moving their students in usually takes a few hours. Moving on? Most deans can tell stories of parents who lingered around campus for days. At Colgate University in Hamilton, N.Y., a mother and father once went to their daughter's classes on the first day of the semester and trouped to the registrar's office to change her schedule, recalled Beverly Low, the dean of first-year students.

"We recognize it's a huge day for families," she said. Still, during various parent meetings on Colgate's move-in day, which is Thursday, Ms. Low and other officials plan to drop not-so-subtle hints that "activities for the class of 2014 begin promptly at 4," she said.

Formal "hit the road" departure ceremonies are unusual but growing in popularity, said Joyce Holl, head of the National Orientation Directors Association. A more common approach is for colleges to introduce blunt language into drop-off schedules specifying the hour for last hugs. As of 5:30 p.m. on Sept. 11, for example, the parents of Princeton freshmen learn from the move-in schedule, "subsequent orientation events are intended for students only."

The language was added in recent years to draw a clear line, said Thomas Dunne, the associate dean of undergraduates. "It's easy for students to point to this notation and say, 'Hey, Mom, I think you're supposed to be gone now,' " he said. "It's obviously a hard conversation for students to have with parents."

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