I carefully curate my youtube viewing by using lots of incognito windows to view things I don't want showing up in my recommendations. All it takes is one errant click to throw the whole thing off. Oh why did I not incognito that terrible comedian?
I presume this also removes them as a factor in your recommendations.
You presume too much!
/humor
That is helpful to know. I too have run into the errant click problem in YouTube. Drives me nuts.