'Mexican Man' costume offends Latino shoppers, community groups By Sean Maher EMERYVILLE — A costume dubbed "Mexican Man" has offended Latino shoppers and community groups after being discovered at a Halloween chain store. The photo on the costume packaging shows a man with a thick mustache wearing a poncho and a sombrero. Oakland resident Monica Plazola said she discovered the costume last week at the Spirit Halloween store in Emeryville, which she was visiting with her two children, ages 7 and 9. "We were there at the store, with all kinds of costumes, and that was the only one identified...