Shopping at the IdiotZone

Today I wanted to change the oil in my car.  On my way into work I stopped at a local auto store that will remain nameless.  They had a great sale going on.  $26.99 for a 5 liter jug of synthetic oil and a free Fram Tough Guard oil filter.

Since they did not have the more expensive "Tough Guard" filter for my car I just grabbed a regular Fram filter.  Here is how the transaction went:

IdiotZone Employee:  That will be $47.96

Me: The oil is on sale for $26.99 with a free filter.

IdiotZone Employee: Where did you see that?

Me: The sign is on the shelf with the oil.

Now we proceed back to the shelf where the employee reads the sign and then we head over to the oil filter shelf.  He stares at it for a minute then heads back to the counter.  He asks me for the year, make and model of my car.

IdiotZone Employee: We don't have that filter.

Me: I know, so I grabbed the cheaper filter.

Employee stares at computer screen seeking wisdom...

Me:  Can't I get the same deal with the cheaper filter?

IdiotZone Employee: No

Me: So, what you are telling me is that if I want the cheaper filter the package deal costs $20 more?

IdiotZone Employee: Yes

I proceed to leave the IdiotZone and make my purchase elsewhere.  I could have made several great comments such as "Math was not a requirement for this job I see" but considering my audience, I felt they would have been wasted.