Man, I feel like such a fool. I've been avoiding Bruce Parry shows for... well... no good reason at all. Then I took a hopeful punt on last weeks and was bowled over. Last night's Amazon with Bruce Parry (BBC Two, Monday, 22 September, 9pm) was the real test as my previous encounter could have been a mere fluke. Thankfully, it was even better than the previous outing. A mix of going above and beyond, just to make a show to beguile and fascinate, Parry clearly loves his work... and boy, does it show!

The premise of a South American carnival made me think that this week, Bruce might have it a bit easier. He's been doing some seriously tough travelling and living in rough quarters, so maybe it was time for him to kick his shoes off and have a bit of fun? Right. Not a hope in hell. While there's no questioning the fact that, last night, Bruce did get to have a whole load of fun at a carnival, the rest of the show contain the most peculiar soundtrack ever in broadcast history - the sound of almost constant vomiting.

Bruce Parry treks and paddles his way to the stoic Achuar tribe. These cats don't trust strangers too easily. In fact, for virtually the entirety of the show, Bruce was treated with nothing more than suspicion... not that something as trivial as that can stop the wild, roving Parry. Instead of bleeding his heart all in the sand, Bruce just gritted his teeth and got on with it. What he got on with would have felled me in seconds.

Every morning, as a pick-me-up, Bruce drank a herbal drink called wayus. To cleanse, this foul drink made you vomit like Noel Edmond's gunge tank at Crinkly Bottom. Once a day, Bruce just dealt with it and felt it unusual, but nothing to write home about. Bouts of nausea during some seriously tough manual work with the tribe would have seen most curling up in a ball, calling for mammy, but Bruce gave a weak grin and carried a whole tree o'er humid hill and dale. Whaddaguy!

Just as the viewer was getting used to the sporadic vomiting, then came the hallucinogenic ritual that sees everyone drinking litres and litres of ayahuasca. Now, drinking this stuff trips you out completely, giving people visions and the like... that's if you have any insides left.

The thing is, Bruce has to drink this stuff which then, makes you throw up spectacularly and violently. You know the kind of vomiting that makes your whole head bulge? Parry's head was positively throbbing and glow-in-the-dark after 10 minutes of almost continual spewing. Oddly, as Parry's grimacing red face tried to mutter "It's like an evil menace sat in my stomach", the soundtrack was everyone else in the village throwing up. It was the most surreal bit of TV I've ever seen. After all this throwing up and waiting for the drugs to kick in, they didn't work. And then the tribe kicked him out of the place. Poor, game, Bruce Parry.

Thankfully, along the way, he had a football game (played women's clothes) and saw another tribe who gave him some much better drugs. This time, his brain imploded and Parry, green in nightvision, rambled on about the terrific battle going on between his "arrogant ego" and the drugs. The lesson he'd learned? That he needed to "shut up".

The fact is, that's precisely the opposite of what we want. Bruce is an engaging and hugely game bloke who is completely at ease with making an absolute arse of himself in the name of a TV show. However, there's something about Parry that tells me he'd do all this whether a TV crew were following him or not. He's a wonderful and mental man who I shall follow for the rest of his difficult TV days... it's the least I can do after what he's been through.