Update
April 4, 2016: when our daughter (Sophia's mother) saw this, she said this was "despicable." Sophia thought it was loads of fun.
Original Post
As part of the "moving-out process," my wife takes cleaning of the old apartment very, very seriously. The most unpleasant job is cleaning the oven. After thirty-plus years in the military with me and many years as a teenager with her dad in the US Army she has cleaned many, many ovens.
This time, though, Sophia volunteered. We got her special safety goggles before "sending her in."