An NIU staff member saw a former NIU student urinating on residence hall lobby furniture Saturday, and another man shoved a police officer during the incident.

Christopher M. Curtin, 22, Lombard, was arrested by University Police and charged with criminal damage to state property after he urinated on some Grant Towers lobby couches.

Also arrested in the incident was William B. Johnson, 19, who was charged with obstructing a police officer and underage consumption of alcohol.

Johnson refused to leave the hall lobby when a police officer asked him to go, police said. Johnson pushed a police officer during the incident, police said.

“It appeared that they had been drinking alcohol,” UP Lt. Kathy Guimond said. “The incident speaks for itself.”

The incident angered NIU Judicial Office Director Larry Bolles.

“Urinating on a university couch is despicable. We’re trying to get Curtin banned from university property. If he shows up on campus, he’ll be arrested for trespassing,” he said.

The judicial office has had problems with Curtin before, Bolles said. “That’s not the first time he’s been brought to our attention, but I hope it’s the last,” Bolles said.

Bolles, however, refused comment on what Curtin did.