When Noah is scared, nervous, unsure or shy, he hides behind me and tries to jump on my back. This is something that just started happening in the past month or so. I feel like he's almost trying to make himself disappear behind me or climb up my back. Noah knows he's not supposed to jump up, but when he's nervous I guess instinct takes over. When Sherlock is stressed (usually happens when little kids are running around screaming or big dogs are circling him), he either tries to hide between my legs, paws at my legs until I pick him up, or starts shaking. Thankfully, Noah is really mellow and doesn't get nervous very easily.