Oh alright then - in the school summer hols I got asked to work for a fortnight at the local hardware shop where my uncle was the manager and there was a staff of three - my uncle - bob the senior asst who was on hols and Ken the junior asst.
Anyway we sold paraffin by the half gallon to little old ladies and gents with their oil heaters and had a 500 gallon tank on the roof.
Anyway this tank had a reserve on it at 50 gallons so my uncle knew to re-order when the main tap ran dry and we had 50 gallons left. But this time we ran out completely and when the Esso tanker driver turned up at 1.30 my uncle was at lunch, Bob was on hols, I had gone walkabout and Ken was in charge.
So Ken turns off the main tank tap, lets the driver connect his hose and goes off for lunch while the driver sits in his cab pumpimg in the fuel.
500 gallons later the driver turns off the flow just as ken comes back to paraffin cascading down the front steps onto the pavement! He'd left the reserve tap open and 500 gallons had been dumped on the shop floor.
Even worse was that one of the store rooms was a brick height down from the main floor and had soap powder, weedkillers, lawnfeed etc stored in cardboard boxes on the floor and the room was ankle deep in paraffin before it flooded the shop.
Classic.