Sometimes, when approaching a fast food restaurant, my goal is to get my food as quickly as possible.

On these occasions, I take note of the number of cars lined up at the drive thru.

If there is a huge line of cars at the drive thru, I will park my car and order inside. Of course, the line of people inside could also be long, but that is harder to determine from outside.

For me, the tipping point is eight cars waiting in the drive thru. When there are eight cars ahead of me, I park and go inside.

At what point do you abandon your car and go inside on foot?