I wouldn’t try #2 because I’m afraid the valve might not shut off tightly and the fire follows the gas to the valve. One wouldn’t want to have burnt valve would they?
@Repete I have been around a lot of ER nurses that said they have treated guys that did this naked and the flame followed up into the person's body burning their intestines on the inside. So, Valve control or not at least keep your under wear or panties on! LOL