This is a project that I made for a studio called Idioms. 'Don't scrape the bark off the wrong tree' or 'don't bark up the wrong tree' means don't mess with the wrong person.
I got the idea from a project called 'don't poke the bear' by @FrankGPS. See it here- https://scratch.mit.edu/projects/167927051/ or go to the studio- https://scratch.mit.edu/studios/4146755/