For me, and I'm a 5 times/year potsmoker, smoking after WLS was like smoking that first joint in that I got very high. But in hindsight, pot legislation was changing here in CA around the same time as my surgery and new plants with different THC %s became widely available. Interestingly, I don't know why so many of my friends have their medical marijuana cards. They seem fine to me, it's probably just a CYA thing.