06/06/2012 03:44 EDT | Updated 08/06/2012 05:12 EDT


LOS ANGELES, Calif. - Like any new addition to an office, Dolly had an adjustment period. The hardest part: learning not to bark at the mailman.

Dolly is one of millions of dogs that accompany their owners to dog-friendly businesses every day. Even more will join her next Friday for Take Your Dog to Work Day.