As a Hunter, you can grief other players farming for the elusive Time-Lost Proto Drake. All you need to do is, assuming you have a pet spot available, tame a new pet, probably a rhino, and name it TimeLost. Most people farming the drake will be using a macro with /tar Time. You can continue to farm it by using /tar Time-Lost, as there is no hyphen in the pet name. Have fun.
PS. Not necessarily useless as it may make finding the drake yourself ever so slightly easier.
PPS. Not sure what section of the forums griefing tactics would go in, so please move if necessary.