Tiffany Haddishmight become the butt of her own jokes. The 44-year-old comedian caused a stir when she called jail a “wonderful experience” after being locked up for her second DUI — and when RadarOnline.com asked the Los Angeles District Attorney’s Office if Haddish’s stand-up routine could come back to haunt her, a representative for George Gascón was less than forthcoming. We reached out to Gascón’s office after the Haunted Mansion actress took the stage at The Laugh Factory’s annual Christmas feast earlier this week and seemingly made light of her second DUI arrest in less than two years. …