I had a pup, well a stray, that some misguided brave soul(s) going down the highway saw fit to stop, let him out in front of a co-workers house & drive on.... Upon request I stopped by 2 days later. I pulled in, the 12 year old daughter marches up & says "So, do you want him?"
The kids called him Scarface due to a wire scar across the nose. I figured that name would give him a "complex" of somesort, so I temporarily called him "Pup". Then never got back to giving him a proper Christian name, so he remained "Pup" for the next 13 years.

jh