"I'm publically apologizing for my son," said Amy Ziegler, mother of the teen Tasered by police in the outfield last night at Citizens Bank Park.

She and her husband, Scott, were on their porch in Gilbertsville this afternoon, fielding questions from reporters but declining to be broadcast on TV.

Inside, kept away from the media by his parents, was Steve Consalvi, 17, a Boyertown High senior whose overnight adventure included being shepherded from a hospital into police custody, being released long enough to grab a burger at a McDonald's in King of Prussia, and then facing a 9 a.m. hearing at the youth detention center on defiant trespass, resisting arrest and disorderly conduct charges.

For the Zieglers, who have been married for 13 years, last evening was a series of shocks.

"I was watching the game and I was like, who the hell is that idiot out there?" said Scott, an engineer with Lockheed Martin.

Steve's natural father, Wayne Consalvi, who lives in Upper Pottsgrove, knew it was his son - because Steve called to ask permission before attempting the stunt.

"He said, 'Dad, can I run on the field?' I said, 'I don't think you should, son.' "

The kid did it anyway, during the eighth inning of the Phillies game against the St. Louis Cardinals.

A police officer and Phillies employees chased him around the outfield until the officer shot Colsalvi with a Taser and the stunned teenager fell, before being escorted away.

About 9:45 p.m. a woman, perhaps with the police, called to inform the Zieglers that Steve was the arrested interloper.

His mom's first thought was whether he was OK.

Scott was less charitable. " "He's a clown, but he's got enough common sense to not do something so completely stupid," he said.

"It was dumb. Absolutely dumb," Amy said.

Steve, a good kid who gets good grades, feels embarrassed and will write a letter of apology to the Phillies, she said.

"I wasn't thinking. It was wrong," she says he told her.

Contact staff writer Trish Wilson at 610-313-8095 or twilson@phillynews.com.