Lacy also lets me know when Alice is roaming in his tank at night (4:00 a.m.) by growling really low in her throat. The first time she did it I wasn't sure what she was growling at until I got up at 5:00 to get ready for work and checked on Alice. His tank was in disarray as it tends to get when he goes hunting. Now that I know what she's growling at, I just roll over and shush her and we all go back to sleep!