An embarrassed father sat next to his teenage son in his high school class after his teacher complained he was talking too much with his classmates and became a distraction in the middle of the class.

Brad Howard from Texas was tired of seeing emails of complaints from his son’s physics teacher about his 17-year-old son’s disruptive behavior in the class. So, he gave his son, Bradley, a final warning.

“If I get another call from her, I’m going to come up there to your school and sit with you in class,” Brad warned his teenage.

But it was only for a few months without complaints. Brad once again received the email from his son’s teacher.

“My son is very kindhearted, but he’s very talkative,” Brad revealed. “He loves to be the life of the party—loves to get a laugh.”

And for his son to take him seriously, the dad knew that he had to keep his word. He called Rockwall-Heath High School in Heath, Texas, and Bradley’s teacher, to ask for permission to sit-in on the class. They agreed.

“My wife wakes me up and says, ‘Brad, it’s time for you to go to school.’ I thought, Oh no, what have I done?” He said.

Brad got to the class early on that day and took a seat at Bradley’s desk to keep an eye on his behavior.

His son probably thought that Brad was just kidding when he said that. So when the teen walked into the classroom, he was pretty shocked when saw his father was sitting in his chair with his arms folded, according to CBS News.

Brad then snapped a selfie to send to his wife, Denise Howard, proving he followed through on his promise. Denise Howard also sent in a family group to show their children the consequences of bad behavior in school.

Molli, Bradley’s sister, thought it was quite hilarious. So she shared a stern selfie of her father who was sitting next to her brother from inside his high school class on Twitter.

My dad told my brother if he got another call from the physics teacher complaining he would go sit in his class … dad got another call.” she twitted.

The photo quickly went viral on social media and they received a lot of responses. Thousands online told Bradley how awesome and loving his father was.

“I probably wouldn’t do that again, but it’s helped Bradley. He’s been doing good in that classroom ever since,” Brad revealed.