From sleeping on the ground to stealing, some business owners in Grand Central Terminal say the homeless population is taking over and they simply can't take it anymore.

Inside the world-class transit hub adorned with grand chandeliers, you'll find men and women sleeping at tables, hunched over on benches, using drinking fountains to bathe and walking barefoot feet away from where about two dozen business owners are trying to make a living selling food.

"At 5:30 in the afternoon, it becomes a homeless shelter," business owner Joe Germanotta said.

Germanotta owns Art Bird & Whiskey Bar, one of the restaurants in the lower-level dining concourse of Grand Central Terminal. He says the overwhelming homeless problem has him on the brink of closing. He's already cut staff.

"What's the worst thing you've seen?" CBS2's Jessica Layton asked.

"People sitting in chairs with their… exposed," Germanotta said. "Sometimes they can be violent … One guy, I think it was yesterday, he was peeing himself."