This doesn't sound like a good idea.

Ben Affleck is considering attending best friend Matt Damon's birthday party in Las Vegas this coming weekend, but his pals are worried his recent troubles with alcohol could put a damper on the festive mood.

"Ben’s invited, but it’s more like they’re trying to dis-invite him," a source dished to Radar.

The Oscar winner had already planned on going to the bash before his intervention and trip to rehab last month.

"He thinks he’s okay to go to the party. It’s been planned for months, way before his stint in rehab. But those who are going to Vegas for Matt are concerned. They think Ben will blow all the fun because everyone will be so focused on him, if he’s doing okay — and if he’s drinking," the source added.

So what are they going to do about it? Call in Jen G, that's what!

"The plan is to tell Jennifer not to let him go. They are hoping, like before, she will lay down the law and he’ll listen," the insider revealed.

This is so high school!