Birthday card featuring possibly unintentional math puzzler

Green food?

This is a pretty standard liquor-and-junk-food store at the end of a low-rent strip mall.  The first picture is from 2011; it shows the owner angling for the SWPL market, perhaps.  The second picture is from 2012.  It indicates further refinement of the same marketing strategy.

A story with a happy ending

Impossible instruction, seen at Starbucks mensroom

Step 6 (in case it's not legible in this picture) is "Turn off water with a paper towel."  This is in a bathroom with an electric hand dryer but no paper towel dispenser of any kind.