ugh dude if you know what bong water tastes like just imagine bongmilk... or bong butter water.....*RAAAALPH*
if you want to drink milk and get high, get hash with milk and put it in a blender. Better with chocolate milk too.
As for bongs, i think you should stick to either water/ fruit juice occasionally(but just to flavor the smoke, dont drink it afterwards it tastes like ass).