There is currently a glitch in the current Recount (and also Sw Stats) which allows a hunter to name his/her pet after a raidmember which will count that raidmembers dps as his own, along with the pets. If he choose to name his pet after a raidmember who is usually in top of dps meter it will grant him such a boost in recount which renders recount useless for analyzing purposes.
Is there a way to prevent this without unchecking "merge pets with owners" ?
This isn't a 'cheat' more idiocy on the part of the hunter as things like threat will also be added to him. Thankfully come 2.4 this will no longer be a problem.
Not idiocy, generally it's done as a joke.
I've had hunters name their pets after rogues just for shits and giggles, also have had hunters name their pets after MTs. When the hunter pet died you received a nice big raid warning about the MT getting killed.