What people say"My OCD made me do it." The label gets treated as the thing doing the checking, the washing and the counting.
What's usually happeningThink of the road-trip question: did I turn off the coffee pot? An obsession is that kind of open loop, and the ritual closes it for a few minutes. Each time it does, you confirm the verdict that the thought was urgent, and the next loop opens faster. The thought is not the problem. The verdict is.