In a nutshell, Laurent has made a habit of poor decisions he only survives by his luck and natural grace. He has scars covering most of his body but can boast he has never broken a bone. There was the time he was caught under a set of casks in The Sitting Duck's cellar because he thought he saw a coin underneath that needed liberation, the time he dropped a tree the wrong way and nearly lost his arm in the crush of branches, or the time... Of course, there were also the times when he was spanked, whipped, and otherwise disciplined for eating an unattended pie, getting his best suit muddy on the way to a dinner, etc.
Then there's the matter of the star-shaped birthmark on the back of his neck. What does it signify?
When he was only 12, Laurent took it upon himself to free a set of panpipes from their owner, an elderly bard travelling through the area in search of (according to the bard) a stone that would turn tin to gold. Laurent had little care for the bard's quest, but the silver panpipes, covered in stars and the stuff of dreams of which Desna is master, consumed his mind and he decided he had to have the pipes. With nary a thought to the danger, Laurent broke into the bard's room at the Duck through an open window and quickly found the object of his desire. Just as he was going to leave the room, the sound of a cough from behind stopped him in his tracks. Turning, he saw a vision of unearthly beauty, draped in falling stars and moonlight. To him she said, "Remember what you've done tonight and that Desna has let you go. Use my gift to spread joy to those around you and protect those you care about." Laurent blinked and the vision was gone, along with the old bard. Laurent hasn't "stolen" anything since, but his desire to be mischievous has never waned.
Laurent sometimes works as an accountant for the logging consortium, as they say he's too weak to handle an ax (and too dangerous to the other workers, too). He spends his idle time wandering the haunts of Falcon's Hollow practicing the pipes and coming up with overly complex plans to make something of himself - plans he never seems to quite start - or reading whatever book he has borrowed from its owner (always returned) for the afternoon.