>>24645846
Yes it is, but probably not for the reasons you think. You seem to be attempting a negative association between the two practices, but in fact both practices are sensible and correct. If you are actively reading a book with a dust jacket, there is absolutely no good reason not to remove the dust jacket during the period when you are actively reading and handling the book. Simply throwing the dust jacket away would be more logical. The dumbest option is to keep the dust jacket on while you are actively reading the thing. It gets in the way and will inevitably get banged up.
Now, manner of dress while taking a shit. Shit goes everywhere, and when you least expect it. Up and out the toilet bowl, onto the back of the toilet seat, and so forth. Given this, it is eminently logical to at least remove your shirt if possible while taking a shit (in the privacy of your own home), so that you don't have to negotiate keeping it raised up so no shit gets on it. Likewise, you want to keep your pants as far away from the blast zone as possible. In my own home, I have taken to shitting with nothing but indoor sandals and/or stocking feet. If nature forces me to use another facility, I'm at least getting the shirt as far out of the way as possible.
In summary, whereas you seem to have intimated that removing a book's dust jacket and disrobing as far as is practicable while defecating are both silly practices, they are in fact both very sensible practices.
