Tipping at gas docks

[ART]

I pull up in my over-horsepowered speed boat to buy my overpriced gas that I will burn away all too quickly. Yes I tip! Every single time. I start with a few dollars for random service and go up from there for a real nice effort.

Some will say 'it is the gas attendent's job so why tip' but I would feel cheap not to tip under the circumstances outlined above.