Pruning trees correctly is a skill; pruning trees well is an art. When you see a person, OK, in this case it will always be a man, heading toward a tree with the intent of pruning it and he's carrying a machete, nothing good will come of this. No connection exists between pruning and a machete. Most certainly the tree will suffer and more than likely the machete wielder will injure themselves in the bargain, and yes, TPP hears some of you out there saying, he got what he deserved. Anybody who desides to use a machete to prune a tree knows so little about pruning, or the use of a machete, that they should not be allowed near either one. To someone who knows pruning, you can see the results of bad pruning decades afterwards, tsk, tsk. Now of course taking a machete away from someone may not be easy. But maybe they can be distracted by that shiny new saw!