Absolutely it's a thing. At the more extreme end you have "hotboxing", i.e. trapping a lot of the smoke in a confined space, like a car. If you sat in the pa

Absolutely it's a thing. At the more extreme end you have "hotboxing", i.e. trapping a lot of the smoke in a confined space, like a car. If you sat in the passenger seat of a car and didn't smoke, and I did, and we had all the windows rolled up, you would definitely get a bit of a high. Outside in a well ventilated area it should be a non-issue, though again I'd recommend extreme care in not involuntarily exposing people.