It all started when I stopped by the grocery store on my way to work. I picked up some frozen egg rolls for lunch and figured I would go ahead and grab some heavy cream for my coffee (fattening and decadent!). I had to carry the cream from the store to work and then back home on the bus and two trains. When I opened the cream the next morning to put it in my coffee, it was lumpy! At first I thought it was bad but quickly realized that I had agitated it enough that it was already starting to turn into butter.