Shock off of propane valve, any ideas would help?

Hi everyone I have just purchased a lightly used spree 31bhs and was de winterizing and had a problem. I turned on the propane cylinders then turned hot water heater on and the igniter was firing. It did not light(likely because the Line wasn't primed) so I went to turn the propane cylinder off and got a poke off of the cylinder handle. I turned everything off and then back on again trying to re create the shock(it felt like an igniter shock not a static shock) but could not. The furnace lite up and the hot water and fridge fired right up and I can't re create the shock. Could this have been a poor ground on the igniter and I touched the valve handle as the igniter was firing using the propane line as a chassis ground? Any thoughts or experience would be appreciated