This is purely to get your brains going?

[TexasRed95]

In the Lord of The Rings films. When the Orc eat each other with Marry and Pippin. How did the Orcs understand the concept of a menu?

[NamerOfStars]

Look closer- those are Sauruman's orcs, not Sauron's. A maiar who's lived among mortals for centuries is very likely ho have picked up the idea, and gould easily have passed it on to his subordinates, particularly if they're more intelligent.

The real question, to my mind, is why Durin's Bane, having been freed by the Morian dwarves and having driven them off, stuck around- we don't know dow long it was trapped there, but if the dwarves are freely mining, odds are that Morgoth lost, so you'll hawe to flee eventually, or they'll get friends, who'll come in force to kill you.