If you really study the two threads, you may stumble across a common theme.
No, it was definitely this one. Either I misremembered the details or I conflated two different threads (not the one earlier this month). I forgot it was started by a woman complaining about her husband’s habit - and I confused that with someone talking about her husband (or boyfriend) wanting her to scratch him.
Regardless, the mushrooms were really the important part. You have no idea the sheer volume of threads I read between stumbling upon this place earlier this year and signing up - things start to run together after awhile.