It's been four weeks since last we saw Kevin, and man, I miss him. All the squirrels disappeared from my yard at about the same time, so I don't necessarily think something has happened to him.
On the last day I saw him, he came down and spent about an hour with me. I always gave him as much time as he wanted, never rushed him away. I sure could use a visit from him, though I imagine he's quite wilded up after four weeks of no handling. I'd just love to see his sweet face.