Filling the car

[rebbonk]

I was fuelling my car up this morning and I tried that thing where you stop at exactly where you want to pay, but I went over and stopped at £20.03.

I really wasn't happy and as I walked over to pay I shouted "Damn it".

The attendant was laughing and said,"I was watching what you were trying to do and that was very unlucky, don't worry about the extra".

I replied "Thank you, that's really nice of you."

Spoiler:

So I gave him a tenner and b*ggered off!