Thomas' long days on the course were followed by long nights in bars, where he didn't carry himself as well. Fueled by alcohol, his playful chatter turned belligerent and drew him into brawls. Gregarious and gracious when he wasn't drinking, Thomas turned dark with a few beers in him. At the 1994 MGA/MetLife Public Links at Spook Rock Golf Course in New York, he shot a final-nine 41 to lose the tournament by a stroke, then brooded in the clubhouse bar while the winner gave his acceptance speech.
"You didn't win it!" Thomas blurted in the hushed barroom. "I .f---ing gave it to you."