Dwarven Rule #7: No matter how bad life gets, even if you witnessed your wife go mad and murder your children while a Beast ripped off your legs, a legendary dining room will make you feel better. Especially if there's a waterfall in it.
Dwarven Rule #12 -- If something needs to be built/talked to/stored/moved/closed/opened RIGHT NOW ... the dwarf assigned the task will invariable go on break/take a nap/get lunch then take a nap/get a drink, lunch and a nap.
^Correct numbering. That's my OCD kicking in, apologies.

Dwarven Rule #13: Never try to buy all the candy from the circus. Doing so will result in the clowns tearing you, your family, and everyone you have ever known, a brand new booze-hole.