I use my Inhalater in public areas all the time and no one says anything. I have started using it inside bars and clubs lately where other people are using E-cigs and still haven't had any problems. I once had a staff person ask and I said it is a vaporizer, I am not smoking anything. Here in WA marijuana is legal, but smoking indoors is not so they were more concerned that I was smoking and didn't seem to care what I was smoking.
Belgianvapor: If you find your Inh starts to taste bad then you need to clean the capsules. I reccomend soaking it in Isopropyl Alcohol for a while and then cleaning it out with some q-tips. You should also clean the chamber with some ISO soaked q-tips. The XP will also start to taste bad as it gets dirty and will need to be cleaned to get the good flavor to come back. I think you will find that if you try one of your fresh new XP capsules in your old Inh you will notice a much improved flavor.