What is the difference between rude and abusive?

If you flag a post, you will see a choice called "rude or abusive", what is difference between "rude" and "abusive"? They seem the same.


Solution 1:

Being "rude" is more of a passive action. If you walk by someone without greeting him or her, that would be rude.

Being "abusive" is being active in causing offense. If you scold, push or bump into someone (intentionally), or otherwise use "force," that would be being abusive.