Could someone help me out. I have turned several friends on to e-cigs. Several of them have an immediate coughing reaction after inhaling the vapor. Why would this be? I am vaping on the same ecig & not having the problem. The ejuice is 60/40 mix of VG/PG 24mg. This has happened to several of my friends & I want to turn them on to vaping but this is scaring them away. Any thoughts?