Peanut is 2 years old and he does get a little nervous at times..Esp when I vacum he will sit in the corner and shake, if I am loud in the kitchen with pots and pans...he will shake..Little things like that...I think its more like a nervous scared..but when I mop or sweep he is the baddest toughest boy in town!! He will attack the mop or broom and bark lol !
Sometimes I will find in him the corner shaking..for no apparent reason!! That always shocks me...I dunno these little guys have their days I guess!