A man performing a human suspension act at a tattoo convention fell and broke a leg-this is a guy that was hanging from the ceiling by hooks pierced through his skin. These people really seem to like their pain, so maybe a broken leg just adds a new element to the act. Performer Jimmy Pinango was listed in critical condition at North Broward Medical Center late Sunday night, a hospital spokeswoman said. The fall occurred at the Deerfield Beach Hilton, where the 13th annual South Florida Tattoo Expo drew about 7,000 people over three days. I have always found tattoos…