anal gland juice has a metalic smell to it...is not like a poop smell at all. Gadget probably had the runs.....it happens. Bindi has a very sensative tummy so I deal with it - if he is acting fine and still eating then dont worry but if his poos are still runny then layoff the dog food and just give him some boiled chicken/rice or some baby food chic stix...it will settle down.....make sure he is drinking too.....and of course if it lasts more than a few days then get him to the vet or a sample.