We've had Casper over 4 months now. He came to us with some mild separation anxiety (barking in his crate for a little while after we would leave), but that's all. Never drooled or peed in his crate or chewed anything up.
Until this week, all the sudden. Monday when I got home from work, pee. Tuesday nothing -- and he was crated Tuesday evening for a few hours as well while we went out for dinner with friends. Today (Wed), pee when I got home from work and the crate-mounted water bowl was chewed a little. This evening we ran some errands, and came home to drool (but no pee) all over a tshirt I had left in there with him.
Any ideas what might cause a sudden onset of SA like this? The only thing that has been out of the ordinary recently is that he spent the weekend camping with DH and some friends and another dog -- and had a blast, incidentally. They came home Sunday morning. Monday was the first time he ever peed in his crate. But isn't a weekend too short of a time for him to become hopelessly attached to DH??
To make matters worse, we're leaving Saturday morning for vacation for 10 days. He'll be staying with my sister and then at home with a guy friend house/dog sitting for us... but now I'm worried sick about leaving when this is suddenly starting.