Exactly my thoughts!
I suppose most rational people who M to pictures or whatever floats their boat would do so in a secure environment - i.e., lock doors especially in a house that is shared by others. It seems very unlikely that he M'd (to normal type of stuff not boys) minutes after she left the house in a huff.
Knowing her unstable behavior, its laughable that she wants us to believe that he broke out the kiddie




moments after she left without a care in the world who walked in on him. Like...OK, she's gone, I can break this stuff out with reckless abandonment.