Hi all,
Short version: Is there supposed to be liquid inside a stand mixer ice cream maker attachment?
If not, what should I do about getting it out?

I Just got the ice cream maker attachment to my stand mixer. I used it for the first time to make some strawberry vanilla ice cream this weekend.
I left the freezer bowl in the sink to wash later, and ran some water into it to wash some of the cream out, and left the water sitting in the bowl of the ice cream atachment for a few hours (or a day) while I did things other than cleaning my dishes.
I pulled the ice cream bowl and I now hear liquid sloshing around on the inside. I really can't remember if I felt liquid when I pulled it out of the box, but I don't think so. Is there supposed to be liquid inside a stand mixer ice cream maker attachment?
If not, what should I do about getting it out?

Thanks