hmmm... i said that i considered it an exploit... but, unless it were explicitly banned as a house rule (which i wouldn't bother doing, as it is so rare and not really that important), I wouldn't raise that much of a fuss... other than being much more likely to attack the perpetrator
That's the best way to deal with it. If someone does something other players consider exploitative or a bit underhanded, just hand his *** to him on a platter - or at least say hello w/ a dozen rain of toads ;p