Two words to the wise.

There are two new words that American needs. I have been trying to come with one of them with no luck. The word defines that frequent event where the thing you needed fixed is perfect the day that you have designated for its repair. E.g. You don't need a haircut the day you booked an appointment. The tooth no longer aches on the day you see the dentist. The house looks great just the way it is hours before the painters are due to arrive. Get it? I though Tempection (temporary perfection) would work, but it's not good enough. Any ideas. The other word I think we need is a replacement for "accident". Accident suggests blameless when more often than not it's somebody's fault. I suggested "laxident". Laxident is a clearer word. Somebody was lax, and if it suggests laxative, no problem because the results of that laxity are often excremental.