Keepin’ it classy.

Officials at a Milwaukee Catholic school say they’re very disappointed that a visit by Gov. Scott Walker this afternoon has already been marred by vandalism.

Staffers at Messmer Preparatory School in Milwaukee’s inner-city were changing the locks today after some of them were filled with metal and super glue during the night.

Walker is scheduled to visit Messmer to read the Doctor Seuss story “Oh, the Places You’ll Go” to second- and third-graders.

School development director Jeffrey Robb said cars parked in front of the school had anti-Walker signs this morning.

The principal, Brother Bob Smith, said on Thursday a woman urged parents to bring noisemakers and scream as Walker arrived.

The governor has been dogged by protestors for months. They oppose the new law that virtually ends collective bargaining by most public unions.

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