I've been reading a lot on fueling up at the pumps. All of these people that are filling up their gas cans in the back of pickups and filling up their lawn mowers while they are still on the trailer are having problems with static electricity and igniting fires. How does everyone else go about filling up their equipment/fuel cans? Anyone store their gas cans inside an enclosed trailer all day long? It says the vapors can ignite also. So I was wondering what you're supposed to do with your gas cans? Everyone post how you go about this. Thanks.