Just one...
And he'll repair any wiring that isn't up to code while he's at it.
LOL....
I recued a border collie from the side of the road... took him home and had him for about 3 days before his owner was found... (seems they were on vacation for a weekend, and the dog had dug out under stress)
That dog was ~intense~. shadowing me everywhere, most intense expression I have ever seen. And would have played ball till my arm fell off ;~D