Firstly, we have the eye witness testimony of the entire Irving family that they did, in fact, see and communicate with Gef. Also, in addition to this testimony, we also have the testimony of five outsiders. The first being their neighbour, Charles Northwood- who claims that he personally heard Gef talk- and that his voice was definitely not of natural origin. Two local Teenagers, Harry Hall and Will Cubbon, also heard Gef speak, as well as a nameless reporter and Government official which all claimed the same thing- that Gef's voice was too high pitched to be natural. The only people to have heard Gef's voice and not be convinced were two journalists, who visited Gef for the sole purpose of hearing him speak.
"Suddenly there was a shrill squeak from the corner of the room where Voirrey, the daughter, was sitting. Mr Irving, in great excitement, gripped my arm and pointing to the opposite side of the room, whispered: 'He's there! Did you hear him?'"
"Evans and I gazed at each other in sheer amazement... We were again conducted to the door and the squeaks at intermittent intervals continued. Each squeak was kindly translated by Mr Irving to mean: 'They don't believe' or 'I want to back a horse', etc. The squeak in every case was of a particularly short duration"
"On our way down, I noticed Voirrey had a tendency to hang behind, and once again we heard a piping squeak with Mr Irving again wildly gesticulating and pointing to the hedge and whispering: 'He's there, I tell you. He's there!'"
Now obviously. the Irvings faked this one. But come on! Just because they faked one doesn't mean they faked them all! I mean, we have a Government official that heard Gef's voice! They are highly educated in science and stuff, aren't they?
Anyways, in addition to testimony, we also have a sample of Gef's hair and of Gef's paw prints and teeth made in Plasticine! Now, I know what you're thinking- obviously the Irvings could've used any old Mongoose's teeth, paws and hair, right? Wrong! We can tell these samples are authentic because, according to tests carried out by scientists Reginald Innes Pocock and F.Martin Duncan - they don't match those of any known species of Mongoose! As a matter of fact, the only type of animal that these samples even come close to matching is a that of a Sheepdog- coincidentally the same type of Dog as the family pet. However, not to stray away from the point- the paw print is unique and, therefore, must be proof that a unique animal made them.
Now to conclude this post, I must say that, although we all know Gef is real, some will look at the story of Gef with doubt in their heart. Some will say that the people who heard Gef speak must have been mistaken since two reporters didn't believe it. They'll say that the hair and paw prints matched the families dog because it was from the families dog. They'll even say that the daughter, Viorrey, caused the whole thing, perhaps with the help of her dad, since most of their neighbours suspected that was the case. However- these charges do not belittle my faith in Gef- and they shouldn't belittle your faith in Gef, too.