I heard from the FAs that the dog got out of its carrier - again, while its owner was sleeping - but did not see it. I think one of the FAs saw it because he was gesturing with his hands the approx size of the dog. Then again, he was calling it a "puppy" while his hands made it seem like it would have been a full-grown chihuahua.
In the past I've seen pax take their little dogs out for some petting on the owner's lap - but these dogs have always been well-behaved and restrained. Have never seen either a service dog or a celebrity dog on a flight.
Q: can celebrity dogs accumulate FF miles? do they get op-ups?