What happens when you have an extra detrital U-Pb age in your total detrital grain count from all samples compared to the total count you made last semester? Go through 2000 U-Pb grains to find out where it came from.
Problem solved. All graphs/figures/text fixed. 3 hours later. No progress made on the work I wanted to get done today. EXHAUSTED. that was the mental game from hell.