Fuckwit #3 - Hey Dave, go and fill the trucks up. Here is the motorcharge card.
He comes back. The truck wont start it is stuck at the petrol station. I ask why? He says I dunno. I go down to the petrol station, truck is parked at the UNLEADED bowser where he has just filled the Diesel truck with 75 litres of Regular.

Sam fuckwit a few months later (new truck) hey Dave, go and fill the truck up.. WITH DIESEL. Ok. So he comes back, its full, heres the receipt for the 144L. I thank him. I go and take the truck out and it is on half a tank. I think wtf, gauge must be fucked as I read with my own eyes 144L. I pull over just to check to see if he put the cap on. NOPE cap is blowing in the breeze on the end of the chain whilst 75L of Diesel has gushed out of the tank.

Needless to say he no longer fills the trucks.