If you are worried just pop each piggy into a carrier with a clean puppy pad and wait until they pee. It's not normally more than a few minutes.
Although remember that feeding beetroot does cause discoloured urine. It gave me such a fright once until I remembered they had bistro salad the previous evening.
Although remember that feeding beetroot does cause discoloured urine. It gave me such a fright once until I remembered they had bistro salad the previous evening.