The type of puller that they are talking about(kinetic),are extremly safe.It consists of a hollow plastic hammer with a screw top and a small aluminum collet that fits inside.
You place the round inside bullet first,through the collet,and screw the top on.A couple of quick taps on a solid surface, and the bullet and powder end up inside the hollowed out "hammer" ready to be used again.
The only draw back,from what I've been told,is that if using spire pointed bullets,it can distort the tip,making them unusable again.I've used mine quite a bit being a newbie myself,and it's paid for itself.