To force myself to take a break, I poured a shot of the Everclear 151 into a glass of orange juice, drank it, then then poured the rest down the drain. I could easily see myself continuing to shoot them up until they are completely destroyed - it's quite addicting.
Update: They have gotten quite large over the course of the day today - entire scrotum is the size of a baseball now. Yet no pain - just big and heavy.