Hagrid and alcoholic drink

[Milz]

No: HPFGUIDX 28472

--- In HPforGrownups at y..., "jenny from ravenclaw" <meboriqua at a...> 
wrote:

>  I'm not crazy about his drinking, especially when 
> he should be sharp for his CoMC class, not hung over.  

We do know that Hagrid got a little plastered in the PS/SS Christmas 
Dinner, that he drinks a rather large tankard of mulled wine (POA), 
but do we have any evidence that he's hungover in class or that's 
he's been drunk during school hours?

IIRC, Draco mentions that Hagrid gets drunk in Hogsmeade, but how 
reliable is that rumor?

Milz (who sometimes mulls wine so much the alcohol boils out)