I'm sure I'm going to regret this once it gets a response (if it gets a response)!!
Anyway - My wife noticed a small patch on back last night that has absolutely no hair on it. It is about 3-4 inches square and is totally smooth and only appeared in the last week or so. She said it looks like it has been waxed, which it hasn't!!)
Now she is accusing me of having an affair

(don't ask!). I'm not sure how she came to that conclusion either!!!
The only thing I could think of that could be doing this is my bike jacket rubbing against my back more, as I have been driving quite a bit faster over the last week with no traffic about and dry roads???
My jacket is quite snug and does have two press studs, at about the same height as my bald patch, on the outside of the jacket.
The reason I have asked this on the forum, is I wonder whether anyone else has had a similar loss of hair possibly caused by riding, or a similar mental missus?