Relapse! Rehabbed Scott Disick 'Drunken Mess' At Charity Event — Does Kourtney Know?

Scott Disick headed south to Costa Rica for rehab, but he went north of the border to Canada to throw all his progress away in an epic drunken evening.

The reality star reportedly showed up completely wasted to a June 6 charity event he was hosting at Montreal's Time Supper Club.

"He was meant to be raising awareness for charity, but instead he was raising hell," a source told In Touch.

Disick didn't bother to appear at the venue until 12:40 a.m., "but when he got there, he was a drunken mess," the source revealed, claiming that organizers for ONEXONE charity were forced to reimburse attendees all the money they paid to attend the event, which was to help feed hungry children. "It was a complete disaster."

According to Lyne Gauthier, 32-year-old Disick "went straight to the VIP section with his brutal entourage, who pushed and screamed at everybody, and started drinking beer and vodka. He seemed like he did not want to be there at all."

"He seemed edgy and annoyed and kept moving from place to place, requesting to switch tables every 20 minutes. He literally couldn't sit still," continued Gauthier. "It was so rude."

As RadarOnline.com reported, Disick had a stint in treatment at Costa Rica's controversial Rythmia Life Advancement Center, but he left the program early.

"He's not taking this seriously at all," an insider said at the time about the aging party boy.