A Florida man’s quick actions saved his life.Mark Johnson is now recovering after he was bitten on the leg by an 8-foot alligator over the weekend.“When you’re around water, watch your surroundings,” Johnson said.Johnson recounted the frightening moments being grabbed by a gator while walking his dog, Rex, behind his home in Port Saint Lucie.Johnson was near the bank of this canal Sunday morning as he yelled for Rex to run.“I look and the gator is bee-lining,” Johnson said. “This gator was coming in fast.