Clark suffered serious burns to his hand but, fortunately, a passerby had seen what happened.
"Steve saw the entire thing go down. He came over and said I'm going to take you to the hospital, an ambulance will take too long."
The mystery man drove Clark to Christchurch Hospital but did not leave any contact information and took off quickly afterwards.
"All I know is this guy's name was Steve and he was bald. I tried to ask the doctor and nurses if he left any contact information but he didn't."
Now Clark is determined to locate the good Samaritan and thank him properly.
He said he would love to hear from Steve and buy him a beer.
A doctor later told Clark the fire was likely caused from his cell phone being in close proximity to the split petrol.