What’s with the three downvotes?
Are shower thoughts supposed to be serious? I don’t know the culture in this sub yet.
It itches other times, but you are able to address it with a free hand and doesn’t seem like such a big deal.
True, in those cases it might not even enter your conscience thought and just happen automatically.
Just like you how end up in the longest wait line or in a traffic jam: because you don’t notice it otherwise.
That isn’t the only time mine itches. For instance, reading your post did.