Because the regular cheese was the snacking cheeses and I ate the last of it days ago. Keep forgetting to stop at the store on the way home so now I'm surviving on ingredient cheese.

Lost the cheese after I took it out of the fridge, put it down, grabbed a knife, and turned around and it was gone. Started looking for it, forgot what I was doing and why I had a knife. 15 minutes later I'm in the living room shaving a yak with a kitchen knife and my wife walked in, looked at me and asked me why there was a block of cheese on the TV stand, completely ignoring the fact that I'm shaving a yak with a kitchen knife in the living room.