For at least one priest I know who is used to serving alone (in the altar) a deacon would definitely be a stress enhancer!
I've known a few stress inducing deacons. I've also known some stress inducing priests and bishops. When these get together around the Lord's altar, it is not only the catholic Church that is made manifest.
Catfight in an alley comes to mind.
Some Deacons are a bit much. I'll never forget a new Bishop firmly reminding an overly "helpful" one just what his role was.. (He had it coming for years, btw)