This practice use to be the way to go, clowns or damsels, anything hard to kill tossed in the tank and the fishes hardiness usually out weighed the stress/discomfort it was subjected to. This was the best practice at the time, some of my older reef aquarium books actually suggest this method.
This was the best way to do it at the time- before bottled bacteria, using ammonia or even just chucking a cocktail shrimp in there works just as well and doesn't pose any risk of ammonia exposure to the livestock. If this was 20 years ago I'd say knock yourself out but now that we know better we are morally obliged to minimize the stress of the animals we look after. Everyone has different morals though, it's your tank at the end of the day but since you asked- I wouldn't.