Pure, ruthless aggression.

[chocolatepuppy]

My puppy Jake does that, he 'helps' me vacuum. The girls both hide.

[Pam]

That is just like my Ripley!! He goes into attack mode just like Spanky! Good for you for getting a picture of it. Ripley generally comes at it from the front and then backs up as I push it. Great photo! Ripley gives Spanky a paws up! He says they are just keeping their home safe.

[Pawsitive Thinking]

Archie does that too! And he has convinced Tobey that it is a lot of fun.............I now have to distract them before I can do any hoovering