Jon Gosselin: It Could Be WWIII When I Get Home

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Jon Gosselin is set to come face to face with his furious ex Kate Gosselin when he returns home for the twins 9th birthday party Thursday afternoon.

"It could be WWIII when I get home," Jon told ET on Wednesday as he went shopping for their birthday presents.

"She's trying to change custody but I won't allow that. She's basically saying it would be too stressful to the kids to have both of us here, like we originally planned."

ET knew it was going to be super scandalous so they've set up live cameras in front of the Gosselin's home to tape the reaction.

How sad is that? Isn't it supposed to be about the twin’s birthdays and not the war between Jon and Kate?

We really hope these kids don't end up in therapy because of their crazy parents.