Doing a compulsion wrong without noticing until later. A small success?

I've noticed this happen twice in the last few months. With a counting compulsion, my anxiety was so high that I hadn't caught that my math was wrong with addition sums until after the fact, and had no urge to recount it then. One of the rare times I can see the illogical side of the compulsion. Wondering if anyone here has had a similar time.