do you guys drive around with the bottle open? I'm assuming it's a pain to have to open the bottle, close the bottle, open the bottle, especially if it's in the trunk. Cause I know i'm going to have that itch to just shoot it every now and again when on a street race on a highway or soemthing....but I can't relaly reach the trunk. is there any harm in leaving the bottle open? Does NOS have an auto bottle opener like NX systems does? how much and where to find it?