I think you're right Wayne. My GS dog gave a meterman quite a scare awhile back. He was chained up and couldn't get close enough to him but with a big dog bearing down on you in full snarl, you don't see the chain.
Now we get a nice recorded message a few days before meterman day saying they care about the safety of our pet so have him inside on suchnsuch date for the meterman.
Heck, when I was a kid they used to have the meters in the house and the meterman would tap & walk right in "Meterman!!". Mom was downstairs doing laundry and didn't hear him and the GS dog had him on the floor when she came up.