It is a bit rubbish when people complain about your dog - we've had it happen twice.
Do you leave a radio on when you go out?
Also if you have a computer with a webcam in the same room that you leave Roxy you can most likely set the webcam to record to the hard drive.
All you need do is point the camera at her cage and start the recording when you go out. This is more useful than just an audio recording because being able to see her behaviour can help determine the reason for any barking she may do.
I've had to sit through hours of recordings of our four due to complaints of them nuisance barking (proven to be untrue) and it's good to see how they amuse themselves when we are not with them.
I had to rewind and re-watch about a dozen times the bit when Jarvis fell out of the chair when he rolled over in his sleep.
