On a flight from New York to Atlanta about 10 minutes from landing the flight attendant ask the passenger to give up her drink because we were approaching landing. The passenger ask if she could finish her drink, the flight attendant stated yes but once I return from collecting drinks she would come back. When she returned the passenger had hid the drink under her seat. The attendant reached down and removed it. Both of there hands where on the cup as the tugged back and forth until the drink flew all over the cabin. The passenger then got up and pushed the attendant to the back of the cabin for spilling the drink on her iPhone. After we landed we had to wait almost an hour for the FBI to come on board to remove her, and take statements on the indecent. The follow up video is also posted on my page.