We had two that did the sock thing, the last one, Walter, didn't stick with one, found them all over the house.  Our present like drooler, likes plastic bags.  We have a plastic bag storer that you pull bags out from the bottom.  Well, she found out that she could do it too.  Of course each one involves the meow routine too and she drools over them.

No, she's very healthy, just drools like a St Bernard when she's happy.  Jan