Trixie The Mind-Reader?

Here's something Trixie has done lately that's spooky. there's probably nothing to this, but it's still eerie. There are few times I've been caught without a bag when I take her out to relieve. Every time I realize that I don't have a bag and say "ah crap, I don't have a bag," she doesn't poop! It's probably a big coincidence, but a small part of me wonders if she understands. Then a larger part of me slaps the smaller part and calls it nuts.