About a year back i had a pack of IB4200s do the exact thing to me. Luckily i just happened to be in the same room cause i had left my pack of cigarettes in the room. I didnt have any way of exstingushing the fire though because every rag or anything i could snuff the flame with was covered in laquer thinner. I totally forgot that they were soaked in it until i tryed using it to put the flames out. So i just had to grab it and throw it out the front door and watch it burn.