A personal slight refers to an action or comment that is offensive, disrespectful, or an insult towards an individual, causing them to feel hurt or offended. Full definition
And any perceived personal slights — like, say, Rep. Brian Higgins» support of former Assemblyman Mike Bragman's failed attempt to coup Silver back in 2000 — could come back to bite a member in the butt. (nystateofpolitics.com)
Of course even if he did attack you, you can be much more persuasive by graciously looking past personal slights, than by reacting defensively against them; you know, turn the other cheek. (nakedpastor.com)
But it is clear he takes personal slights seriously, and it's rather obvious he is not happy KD left him for the Warriors. (sbnation.com)