Anyone remember the old lemon or orange powder (well, more like crystals IIRC) that we used to get? Absolutely horrible stuff but would, nowadays, probably be called an Isotonic drink. I remember in Cyprus, after doing a 10 mile bash over the boondocks of Pyla ranges, being given a mug of this powdered drink and it tasted absolutely brilliant. Like nectar of the Gods and felt ice-cold and brilliantly refreshing. After the sweat-down, had another drink and it tasted absolutely bloody horrible. Warm, sickly sweet with lumps in. And this was from the same urn.