I was built to be a security protocol droid at the Mall to keep thieves out but simply I malfunctioned. I just go for anyone that I see once my 30 second time goes off. 
A little mouse by the name of Mousy became a victim of me and I chopped off her legs, She stays in the vents and we’re on great terms now even though she’s legless and now infected from the infection that’s going around.
My victims get a good 30 seconds to run around and hide before I chase them.