On burms and safety:
Keep in mind that of all the large constrictor deaths on record, something like 2/3 or more have been by burms. Now there are a variety of reasons for this (popularity back in the 90s not the least of them).
However when it comes to large constrictor snakes, while a burm can overpower a lone person, I'm of the opinion that a prepared duo can prevent death in any case of a burm deciding to bite and wrap.