But then the weather improved, the snow melted, and the grass reappeared. So last night, we let Fuzz out.
And forgot to let him back in. I figured this out when I went downstairs this morning and found him meowing and pawing at the back door when he saw me coming.
It's windy out. Fuzz hates wind.
So I let him in.
In retrospect, I should have noticed that he hadn't come by to wake me up in the middle of the night. :)