Li abundances as a function of metallicity for the HARPS non-host stars. Thin disk stars are depicted with blue symbols while thick disk stars are denoted with red symbols. Downward triangles are upper limits on Li. The separation of the Galactic populations are based on the abundances (top) and kinematics (bottom). The constraint on age is only applied for the thin disk stars, as in Ramírez et al. (2012).