Paddy brought 2 horses....

Paddy bought 2 horses & could never remember which one was which so he cut the tail off 1 & that worked great till the other horse got his tail caught in a bush & it looked exactly like the other. his pal suggested he notch the ear of 1 horse & that worked great till the other horse caught his ear on barbed wire. The pal then suggested Paddy measure the horses for height & he was delighted to find that the black one was 2 inches taller than the white one.