All of this:
Tom is
This is:
You know,

Many years on Mondays in the morning I shave thoroughly, wash under the shower and so on.

If you do this every day instead of once a week, there will be no problems.

Where is it written that he washes once a week?

It is written right here. I wash, write, and shave on Mondays, and then go to work. And here, he writes, washed on Monday and crumbled, do not need to go to work. And he sits at home on Monday, like a fool, washed and shaved.

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This is a banal ignorance of logic. People confuse the terms "on Mondays" and "only on Mondays". Not a programmer obviously.