Save the kitten then bask in the notoriety. When asked why you did it, claim the painting was disappointingly small and very over rated.
It keeps people that only came to the Louvre to see it (and nothing else) well-contained to one area.
Leaves more room for me to look at the actually interesting stuff!
Like "Psyche Revived By Cupid's Kiss" (https://en.wikipedia.org/wiki/Psyche_Revived_by_Cupid%27s_Ki...)!