So, you may know if your a fan of TADC like me, and I've done a lot of research on jax because he's my favorite character and I discovered a while ago that he was afraid of corn. I thought it was weird, but later would be explain by the creator of the show Gooseworx. Now, I decided to google it and apparently it reminds Jax of the farm. So here's my theory. Before Jax got stuck in The Amazing Digital Circus, he lived on the farm as a kid. They most definetly grew corn since it was a farm, and Jax probably liked corn a lot, since that's the only thing that reminds of it, other than anything else you would normally have on a farm like pigs and squash and whatever. Jax grew up and decided to get a job. So, he saw that there was an opening for the C & A (Cain and Abel) company, the company that created TADC. He got hired, and they asked him to test the headset before realsing it worldwide. He then got stuck in TADC, having no memory of his original life except... Corn. The only thing Jax rememebers about his original life is the farm and corn. It all makes sense.
