Unless there is someone there monitoring the animals overnight...I wouldn't leave mine. None of mine stayed the night at the vet's office afterward. Mine were done in the am...and they stayed there until 4:30.
Actually if no one is there overnight...perhaps it's you that should have them sign a waiver.
__________________ Deb, Reese, Reggie, Frazier, Libby, Sidney, & Bodie |