ExXB - ecigs are even worse as the vaping fluid is highly flammable as well.
Recent client assignment (ironically on Disaster Recovery) nearly had a full LIVE test when one of the staff plugged their ecig into a charger. LiIon battery went and whole unit flew across the floor spreading burning fluid - folks who were there said it was like a mini version of the opening sequence in Apocalyse Now - Napalm in the trees bit.....
Now banned from the building.