Yes Boomerang, the monkey see monkey do scenario would definitley be a problem on EK. I know they still have a "smoke" problem with Dakka, Instabul and Moscow last time I discussed it with crew.
I reckon they will just ban them outright in the end.
However, how about an airline embracing the idea. There are electric ciggies that have only a blue light specifically to prevent mistaken identity. Reserve the last 10 rows for vaping as it's known. Charge an extra $25 a seat and sell them on board for $50 a pop, a possible $7500 per flight with commision sales going to the crew
Would be quite a sight, seeing dozens of blue lights and clouds of steam wafting up from the back, but then again
Coopz