Re: Amazed
Five years or even ten would make no difference.
Prison sadly is not a deterrent for the stupid, as is evidenced by the high repeat offending rates. There's little robust research on what might be an effective deterrent for such people because the only allowable choices are clink, fines or "education & rehabilitation" all of which have very limited success, even where they've really tried the E&C approach, as in Scandinavia.
Personally, I'd be quite happy to see the stocks brought back, and let him sit in his own excrement for a week whilst being abused and pissed on by drunkards. Probably still not a deterrent, but a suitable and inexpensive punishment.