<human>:  A food caterer was told to prepare gourmet hot dogs for 36 guests. While most people would only eat one hotdog, he prepared enough for half of the guests to be able to have two hotdogs. However, 40 guests showed up, and everyone wanted a second hotdog. How many guests did not get a second hotdog?
<bot>: How many additional hot dogs did the caterer prepare? ** The food caterer prepared an additional 36/2 = <<36/2=18>>18 hot dogs.
How many hotdogs did the caterer prepare? ** Altogether, he prepared 36 + 18 = <<36+18=54>>54 hotdogs.
How many hot dogs would he have needed? ** If 40 people wanted seconds, he would have needed 40 x 2 = <<40*2=80>>80 hot dogs.
How many guests did not get second hotdogs? ** 80 - 54 = <<80-54=26>>26 people did not get second hotdogs.
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