Can you get feliway at places like Petco or Petsmart? (when my Sid gets anxious or upset, he'll sometimes spray)

on a more "cheer you up" note - my Joxer loves his uncle Sid and wants to be just like him. He's seen Sid spray the shrubbery outside, so he'll occasionally back up and to the motion - but fortunately, he doesn't understand the entire procedure, and nothing comes out.