When I was in Amsterdam with the gf in January I was determined not to combust. I got out there and before I did anything else I went and got a smoke bubble for 10 euro. I had a quick youtube look-see before I went to get an idea of how to use one effectively.
Anyway, had a reasonable amount of success with the bubble, but once it starts to get a few uses and the sticky starts to collect it becomes almost impossible not to combust. Plus the gf started to get very pissed-off with me and started calling me a 'failed wizard'. When I asked her wtf she was on about she said I looked like a wizard staring into a crystal ball and looking pissed off.
The Bubble was just too labour intensive and, she was right, I was spending my time concentrating on this shitty little bubble, giving me shitty results when I had a beautiful lady in front of me and a stunning city surrounding me!
So, I gave up on the bubble and went with the flow smoking big fat pure phattys. It was fine for 2 days but I was sooo happy to get home to my vapes again.