That's hilarious! My Toy Fox Terrier also loves stealing socks instead of playing with toys. It's like they find socks more interesting than any ball.

Same here! My Toy Fox Terrier will pick socks over any toy. I think it’s the thrill of the chase and the softness they love. They have such quirky personalities; mine has his own collection of socks he 'protects.' It's definitely a funny habit that gives us a lot of laughs.