A professional fisherman got a big surprise as he tried to launch his boat at Lake Sam Rayburn to practice for a fishing tournament this past weekend.

Eric Jackson, of Rock Island, TN, told 12News his two-year-old Dalmatian, Bodi, stepped on the gear shift switch, putting the 38-foot RV in reverse.

Jackson says he was on the back bumper unloading his boat when the RV began backing into the lake.

Jackson had been working to launch his boat at the ramps at the Umphrey Family Pavillion of Highway 255.

He was planning a practice day before the Fishing League Worldwide 2019 Tour when the mishap occurred.

In the video, Jackson can be seen trying to run around the side of the RV to stop it from going into the water.

Read more from KBMT's website.