  Recent data reported by the PAMELA and ATIC experiments, as well as cosmic
ray lepton results from FERMI and H.E.S.S. collaborations sparked a series of
papers explaining these results either by contributions of electron positron
pairs to the local interstellar cosmic ray (CR) spectrum by dark matter (DM) or
pulsars. Focusing here on pulsars, we argue that at the present, our knowledge
about particle acceleration at pulsars as well as of the local Galactic CR
propagation is still limited, i.e. the recent results for CR electrons and
positrons constrain pulsar and propagation models. We will thus not present
another attempt to explain the data by contributions of pulsars to the local CR
lepton flux but rather to highlight the caveats in doing so.
