I do but its few and far between. I've done a decomp, needle sweep and a couple of blood cleans. The trainers I used sort of promised work through them but .............. You need some form of training but there is no recognised qualification and all the trainers will lead you to believe theirs is the best. I also got an additional invoice for £140 just to remain a "member" of their academy. A couple of days with a suitable person and a large helping of common sense would be enough if your insurers did'nt ask if your trained. A small amount of pest control training is also needed to deal with the flies and maggots on a decomp. A strong stomach is also a help ! Hep jabs are also prudant