(WJXT/CNN) - A Florida father is getting a lot of attention online for an ad he posted on Craigslist.

He’s selling the truck he bought his son after finding out the son was using it to drive around and smoke dope with his friends.

The ad seemed to start a movement of parents standing behind Allan Geiger.

“Texas, Tennessee - just all over the place, telling me, ‘I’m not interested in your truck. I just want to tell you you’ve got Texas support, and everyone supporting you with your decisions,’” Geiger said.

The reason the 1998 Ford Explorer is for sale, he said, is because his son “thinks it’s cool to drive around with his friends smoking dope and acting all thug, especially not showing me and my wife the respect that we deserve.”

He decided to take the vehicle away from his 18-year-old son, adding a bonus for people who live in their neighborhood - $250 off the asking price of $1,500 - “Just so he could see it every now and then when he’s walking with his friends,” Geiger said of his son.

Geiger said he woke up to dozens of messages from strangers who support his parenting decision.

“I posted it one night, woke up the next morning, and seen a few shares,” he said. “Didn’t really think a lot of it, and the next morning I work up...and I had over 60 messages.

Geiger’s son didn’t want to talk on camera, but he has said he is remorseful and is focused on getting his diploma.

Courtesy WJXT via CNN Newsource