2017 Grizzly. Last time I stopped at a fuel station along the trail, my fuel cap released pressure as if it was a radiator. I loosened it a bit further and it blew off, spewing fuel into the air into my face and onto my clothes. It sprayed out of there for about 10 seconds. A witness from across the parking lot who was also on an ATV came over and said he'd never seen anything like that before. He asked if my vent hose might be plugged. This could happen from riding through deep mud as mud would clog the end of the hose. I avoid mud when I ride so the deepest mud I would have been through is a couple inches. I ride hard and fast, corner and drift, and technical stuff. No mud. I looked under the seat where the vent hose is and followed it down to where it exits behind the rear trunk space. There was no blockage there. Why did this happen and what can I do to prevent it?