Well then, I guess most of us can say that we are bad moms also Don Juan's Mom, because I'm sure a lot of us have done something similiar to what happened to Zerlina.
Like the time I was getting ready for work and went into my closet to get a sweater and not seeing Katie dart in there.
I left at 8:00 a.m. and got home at 5:00 p.m., went to put my sweater back in the closet and out shot Katie meowing her head off at me. I could have sworn she was using a few choice mews at me.
Or the time I went outside to see if I needed a jacket or not. Came back in the house, BTW, I did need a jacket, left 10 minutes later and as I was coming down the stairs, I could hear this cat meowing close by. When I got downstairs, I looked on the gallery below me and there was my RB Scooter. Didn't even know he got out.

So you see, you are NOT a bad meowmie, even though we think that when things like this happen to our furbabies.

But like Tony the Tiger says; "YOU'RE GGGGRRREEAAATTT!!!!!"