Amulet's Coffee

Milk does not boil over in a microwave if it has a little water in it. Not too much.
Decoction into milk is only for an experienced hand.
Milk into decoction is the normal way; you can stop when the color of coffee is to your liking.
You can froth at the same time as you pour the milk... like:

 

once upon a time, I heard this from a girl who lived with her inlaws. And she was expected to produce perfect coffee in the morning, with the usual madras-bangalore paraphernalia.
I gave her a tip for use in emergencies, when the water went down too rapidly and the decoction was weaker than normal. I told her that she ought to have a small bottle of instant coffee (Bru or Nescafe would work fine) hidden behind the other canisters in the pantry. When the filter decoction fails, she would add judicious amount of instant coffee to whatever came out at the bottom beaker (decoction receptacle) to fortify the decoction to the usual darkness/strength.

If the failed decoction had been at least half as good as normal, this trick would work just fine. She should also mix less milk than normal (it would be a wee bit stronger) and serve it a wee bit hotter than usual. This combination of strong-hot would let it pass muster without any suspicion.

This is, of course, a very dangerous thing to do too often; because when the decoction is right, that will start to taste odd, and the empty bottles of Bru/Nescafe in the trash would have be explained.

 

No wonder the faint-hearted drink chai.

 

Balzac talks Bowel Movement:
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“This coffee falls into your stomach, and straightway there is a general commotion. Ideas begin to move like the battalions of the Grand Army on the battlefield, and the battle takes place. Things remembered arrive at full gallop, ensign to the wind. The light cavalry of comparisons deliver a magnificent deploying charge, the artillery of logic hurry up with their train and ammunition, the shafts of wit start up like sharpshooters. Similes arise, the paper is covered with ink; for the struggle commences and is concluded with torrents of black water, just as a battle with powder.”