Mark drinks a lot of wine

I've noticed many times Mark drinking wine at lunch/dinner functions....and even on the airplane. Often times he seems very buzzed and or sedated by the way he talks. He didn't appear to be drinking during the thanxmas show but seemed to be very buzzed so I'm assuming he got loaded on the flight. He gave Paul 3 hugs and wouldn't let go while throwing around the "love you's" left and right...classic drunk speak.

Anyone else notice this?

Also I'm convinced mark and Donnie are wearing wigs and or plugs...but I'm sure that's the obvious - popular thought.