Easy as Pie

Back in college, one of my classmates once told me that passing our English class was going to be as easy as pie.  I asked him whether he meant easy as eating pie, or making pie, because I had tried to make a pie before and ended up almost burning the house down.  Eating pie, however, is rather easy as long as the pie tastes good, but if it tastes bad then it could be very difficult, especially if the baker of the pie is someone you don't want to offend.  He looked at me oddly and walked away.  Some people get very touchy when it comes to food.