Hi Misti!
To be completely honest, it's not while I'm GONE I'm worried about but it's while I'm there!!! I hate being "the nag," but quite frankly, I can be one. I just don't feel they're being careful enough sometimes when they open the door WIDE open.
I tell them, the cat does not run out when I'm there, but cats tend to take advantage of OTHER opportunities (people they don't see as their owner).
You can't just open the door and turn your back without knowing where the cat is ....juuuuuusssssst in case. Of course they think I'm too paranoid, but I've heard a million and one stories from folks about how their cat ran out when they had someone babysit.
It stunk having to get a collar NOT because she hates it, BUT it makes me depressed thinking of her getting out. Where I am now it's okay b/c we live upstairs and she never leaves the patio (b/c of the stairs), but who knows if she'd run when a STRANGER tries chasing her.
hopefully this will never be an issue.