The component of milk that makes paints and glue is casein, a toxin.  Cow's 
milk is FULL of casein.  Casein is for COWS.  No adult human should be drinking 
cow's milk, and it should not be given to children, either. There is a proven 
link between cow's milk and ear "infections" in babies, and casein causes a 
full array of upper respiratory symptoms: postnasal drip, tonsilitis, 
pharyngitis, halitosis, and swollen glands.  It's also implicated in rosacea.  
There's a reason singers and speakers avoid milk: It stimulates the production 
of mucus.  Your body forms mucus to protect itself from nasty stuff like 
stomach acids.  Hmmm...  Could it be that cow's milk should not be put into 
human containers?  Don't believe me?  Remove it from your diet for a month or 
so and see what happens.

Breast milk is for human babies, and cow's milk is for calves, and no milk is 
for anyone over two years of age.  I can't think of another country that hasn't 
weaned itself unless it might be Canada, but I don't have any evidence to say 
on that one way or the other.  France and Italy wean their babies from milk to 
watered wine.  

Cheeses are chemically changed, and don't seem to have the effect on humans 
that plain milk does.  The enzymes that form the cheese probably alters the 
casein in such a way as to minimize its effect.   

When we lived in Alaska, powdered milk was more practical and less expensive 
than fresh milk.  I had a one-quart pitcher that I mixed the milk in every day, 
and it wasn't long before that pitcher had a crust of hardened casein on the 
bottom that I could NOT remove. I even took a screwdriver to it, and didn't 
even scratch it.  It took years of using it for other things and years of trips 
through the dishwasher to finally remove the worst of it.  It was harder than 
varnish; almost like Varathane.  I never saw anything like it.  If it does that 
to a simple pitcher, what's it doing to my insides??  

Need glue?  Use canned milk.  Milk in water-based paints imparts a sheen, also. 
 Must be more of the casein.  No, thanks.  I think I'll stick to water.

Liz