DUDE.

(we've all done it- distractedly left something important sitting idly while we rush on unawares, but seriously! Really Philippe? REALLY??)

Musician reunited with $4M violin he left in N.J. cab
Grammy-nominated violinist has been reunited with a $4 million violin he left in the back of a cab.

Philippe Quint exited a minivan cab at New York City's Battery Park early Monday, leaving the 1723 Antonio Stradivari "Ex-Keisewetter" inside.
The violin spent the remainder of the night on the seat of the cab, which owner Mohamed Khalil parked on a Newark street. By the morning, he was still unaware of what he was carrying.
By then, the frantic Quint was calling the Port Authority of New York and New Jersey, and Newark's Taxi Commission, which put the word out that the violin was missing.
On Monday afternoon, Khalil checked his taxi while at Newark Liberty International Airport and discovered the violin case with the instrument inside.
Quint soon arrived, dropped to his knees and shed tears of joy.