You have LAN ports in your bathroom?
Specifically no matter what you do in your house/work for some there is always low key chance of someone bothering you. This is not the case when you appear to be using the toilet.
Still seems weird to me though.
Open the laundry chute, it's in there along with a Thinkpad brick, both wired up from the basement. Ends have magnets that captivate them to the chute door for safe keeping.
USB-C to Ethernet