If you see lots of black stains (urine in wood goes dark over time), no amount of organic or enzyme products can get to the all places the urine is.

Well Blacke, it was not a "rule" only a hypothetical to get people's opinions on the matter.Either way, I agree with you that learning hands on really is the best way to learn, but having a coach to ask questions to or guide you through is also vital to your success.I think your offer to get taught and give the teacher the full profits from the first deal is great, however, many have "offered" that very same thing to me and in the past I took them up on it.

Looks like the Plains states are the only ones staying out of the "black rate" (>=10% unemployment).

Little black (matches?)

@Tim Ball For whatever it's worth, I've told my PM that appliances (mine are either white or black, no stainless steel) get one repair and then it's a replacement. 

Do they have a criminal history or other black marks like bad credit?

Use black and white trim (white trim/ black doors) or vice versa and you will be in 2018 color territory!

@Josh Black @Steve Medina thanks!

Perhaps try spraying the ceiling of the basement all black like they do in some commercial spaces.

Black works just fine.