Last poster pretty much said it all. If you can't do the bag vaporizer you shouldn't worry about the glass shattering and cutting you. I have broken 6 whips and it was never resulted in flying glass. Usually a big chunk will fall out. It will leave a jagged edge and you should not use the whip again even if you can get a hit out of it. Inhaling small pieces of glass is not recommended. My lungs and throat have never been happier. I was sick once in the last year since switching to vapo. I used to get sore throat or colds 5 to 6 times a year. Vaporization is the way to go if you want to stay healthier. Oh and it doesn't smell and makes your greens last longer!!!! 2 other major pluses.