Check the Price Tag First

On a weekend, me and my room-met went to a Shopping mall. We both decided to go to Food court to have snacks. We like to have some ice creams, so we were checking for the menu list, what are the flavors are  available. The conversation between me and the salesperson goes like this.

Sales Person: How may i help you Sir?

        Me: Give us tow chocolate cones which worth Rs.25/- each[we gave Rs.50 to him]

Sales Person: (..... smiling at us )

        Me: Why are you smiling at us?

Sales Person:  Sir, please check the price tag first.

        Me: Hey, we have checked that, it said chocolate cone cost Rs.25- each.Give us two

Sales person: Sir, only the cone is Rs.25, you need to buy ice cream separately.

         Me: Oh my goodness. (we smiled like anything..).

Then only i realized that why the salesperson stressed us to read the menu again

 "CHECK THE PRICE TAG FIRST !!"