SANDOWN PARK, which attempts to beat the weather again on Thursday and Friday, may have to rethink the "Titus Oates" nom de plume given to the tipster whose selections are carried in the track's racecards. After all, the original Titus Oates predicted to Charles II that there was a plot to kill him, which prompted the king to execute 35 innocent bystanders. No less serious for punters was Oates's return of just two winners from seven selections given in his name last weekend. The odds weren't much better than 3-1 for the double. Off with his head.