So it's back to deterrent sentencing again is it? Better not get me going on that one.
The alternative being what? A nice little tap on the wrist and asking them very nicely not to do it again?
The only way to get through to these louts is to slap them down hard. The namby-pamby liberal take on dealing with them is both unlikely to succeed, and inappropriate in this context.
The situation will only improve when airlines actually stick to their own rules regarding alcohol.