I few times I have accidentally hit the like button on a post when I did not intend to. A couple times this has resulted in my liking something that I really didn’t like. I know it probably doesn’t really matter but I don’t like having my screen name associated with some of the things that I have accidentally clicked on. Is there any way to undo this?
…Click the like button again?
The like button giveth and the like button taketh away. 
Yes. that works.
Thanks, that worked. I am technologically challenged.