Re the post by Zainal above, a little explanation might be in order. We in Malaysia are quite superstitious and our guides usually take great pains to brief us on the taboos before embarking on our jungle treks. A very important one is never to refer to dangerous animals by their names; thus Zainal refers to the 'old man' while my guide in Trengganu called him 'Tok Misai' ( Sir Whiskers ) and the elephant as 'kereta kebal' (a tank, as in Sherman tank).
Also before entering the jungle we are told to ask for permission from the guardians of the forest to enter their domain. Prayers are also offered according to one's faith. Being Buddhist, I recite a little mantra before I start. Also when we take a leak in the jungle we also ask for permission in case we offend some spirit. These may seem ridiculous to outsiders but we and especially our guides take this very seriously. My sifualways advised us that whether we believed in these things or not they always make our guides much happier if we take their advice (or seem to take their advice) seriously.