Chocolate Theft by Chance

I was sitting on the couch, and I decided to get some chocolate.  My mom called me up to do something, and I did it.  I went back to the couch, and I was about to open the wrapper, and then my dad called me.  I did what he wanted me to do, and then I went back to the couch, and my chocolate was gone.  I went to my brother’s room and asked him, “Did you eat my chocolate?” and he said, “No.”  Then I went to my sister’s room and I saw my wrapper on the floor.  I found out my sister ate it, and I was mad, because that was the last chocolate we had.  She gave me a dollar and we were fine after that.