A friend of mine is fast approaching a major milestone birthday 
. As a light-hearted little birthday present, I decided to contact her best friends/colleagues/closest family and ask them for their “secrets of youth” – so far I’ve got some really nice, personal things like taking occasional weekends away without the LOs, having another go at a favourite childhood hobby, etc, etc. I was planning to have these nicely printed or written up and added to a scrapbook to give to her to keep. HOWEVER, yesterday I received the following response from one of her (male) friends:
When I first came of age I had an electric toothbrush. I used to keep the old used heads. I would place my penis on the edge of the sink and turn on the toothbrush with the old used head and hold it to the underneath of my helm. My young, sensitive length would then, within minutes, ejaculate straight into the sink. Job done.
I think he might have misunderstood the term “secrets of youth”? 
I don’t think English is his first language.
AIBU to leave out his contribution to the book and, if I do, should I say anything or just pretend that I didn’t receive it?? If I go back to him to explain the error, I’m not quite sure how I should phrase it…? HELP! 