Here's something I haven't seen before, and i'm wondering if anyone has witnessed this behavior. He deliberately takes his (dead) mouse, drops into water dish and then proceeds to hold it in his mouth and rolls it around for 5-10 minutes in the water before swallowing. I've seen him drop into the water before eating, but today was the first time he has taken the time to thrash it around in the water. Pretty fun too watch, but is this a common behavior??