When I was young and penniless (and an idiot) I tried to siphon gas out of my Dad's car with a hose. After a mouthful of gas I thought their must be a better way.
I duct taped the hose to Mom's vacuum cleaner and let er rip. I could see gas coming up the tube but before I had a chance to remove the duct tape and hose, gas/fumes blew up the vacuum (no kiddin' - a piece of the palstic housing lodged in my ankle). I threw the flaming hose on the lawn and yanked the electrical cord out of the socket. I looked back at my Dad's car and noticed a large black streak up the rear quarter.
I hid everything but Dad found the clues and put it all together! Years later he admits he laughed his ass off but at the time he kept that fact well hidden.