We can usually tell by his fingernails if Pete Doherty is back on the drugs or not!
The musician was agitated when photographers started snapping him outside a CD signing in Paris on Tuesday night.
An exhausted-looking Doherty sprayed the cameras with beer and then went back inside to smoke a ciggy, breaking France's new clean air laws.
What is growing under his cuticles? Don't you wanna know????
[Images by ANG via Fame Pictures.]