I went and took a ua for a job I interviewed for yesterday (the day before a 3 day weekend). Although I never did this before, I accidentily flushed the toilet (they tell you not to) they told me they'd send the sample anyway and it would be up to the company whether they wanted to accept it or not. What is hr likely to do... accept it, have me retake the test, or drop me totally from the hiring process?

We don't know them so there is no way for us to know that answer.

If it was my company, I would eliminate you from my choices because it would seem to me that you were trying to hide something... but that's just me.