That led to four hours' of uncertainty Monday night before Young contacted the Titans and met with Fisher, a psychologist and police crisis negotiators at the team's headquarters before driving himself home. Combined with Young's reaction to being heavily booed in Sunday's opener, his mental state has been questioned heavily the past two days.
Fisher addressed all those questions on his radio show Tuesday night.
"We can never be too careful sometimes, and sometimes you can't jump to conclusions. You have to wait on information and be patient," he said. "The information I had didn't afford us any patience."
The only thing known for sure? Young has a sprained medial collateral ligament in his left knee, and Fisher said he will not play Sunday at Cincinnati. The coach would not give a timetable past that, calling the test results good news and that Young needs to heal up his leg.
What prompted the call to police? Fisher wasn't saying.
"I was given some information from people that were close to him late afternoon, early evening that was quite honestly very concerning to me. I'm not going to go into specifics, but it was concerning to me," Fisher said.
After talking to Young, Fisher called it a "complete misunderstanding."
"I'm happy to report he's home. He's resting."
Young's agent Major Adams said there's no need for concern because the quarterback was at a friend's house watching football and eating chicken wings during the four hours when no one could find him.
With only veteran quarterback Kerry Collins healthy, Fisher said the Titans agreed to terms with Chris Simms after working out Quinn Gray, Joey Harrington and Doug Johnson on Tuesday.
Fisher was asked whether he was concerned by Young's sideline demeanor. Fans have been upset thinking Young didn't want to go back onto the field after his second interception, and the Titans have defended him as an intense competitor.
"It is an issue, and it is something we're working with him to kind of correct," Fisher said of Young's emotional reactions. "Our game is a very, very emotional game. ... Different players deal with it differently."