To that one team member...
No one cares how they did it at Walmart. No one cares that you got more breaks at Walmart, or that they let you smoke outside on your breaks. Trust me, if a sentence has the word "Walmart" in it, chances are that no one wants to hear it. If all Walmart employees are like you, they spend a good amount of time standing around, milking simple jobs and leaving messes wherever they go, so no one is impressed with your stories. If things were really that much better there, you could always go back.
Oh wait, you can't. According to my friend at Walmart, you were fired. It turns out that those weren't just cigarettes you were smoking on your breaks. =/ Where's that "at Walmart..." story?
To a former team member: I'm sorry we didn't get to know each other better, but I appreciate all that you did for me when we worked together. I hope your new job is everything you want it to be.