I bought a Bang nic stick and the lady didn't mention anything about having to try it before leaving. I literally walked right out in front of the shop and tried it and it didn't work. Went right back in to return it and she wouldn't swap it for one that worked because " I didn't try it in store". I clearly tried it right out front and she didn't care to be helpful in any way!! Worst customer service I have ever gotten from a smoke shop.... would NOT recommend!!!