A man who said he paid an unnecessary tax when purchasing sparkling water at a Walgreens drug store does not have the basis of a claim for statutory consumer fraud, the state’s top court said.

Filing pleadings that revealed a client’s business secrets, divulging emails that contained a divorcing couple’s confidential mental health information and launching into what one judge called an “unhinged attack” on an expert witness are among the disciplinary charges facing Chicago attorney Joel A. Brodsky.