Irish Joke - Thanx Kit

Two Irish men bought two pigs, unfortunately, they were sharing a garden, so they had to keep the pigs together! One says to the other
"Good grief! How are we going to tell them apart Paddy?"
Paddy thinks a while and says:
"Listen Dougal, I'll cut one ear off my pig, then my pig will have one ear and yours will have two"
"That'll be grand,"
********A WEEK LATER********
Dougal comes running into Paddy's house shouting
"You'll never guess what! Your pig's only bitten one of my pigs ears off - now we have two pigs with only one ear, how on earth are we going to tell them apart?"
Paddy replies
"Listen, I'll cut the other ear off my pig and then my pig will have no ears and yours will have one ear,"
"Oh, that'll be grand,"
********A WEEK LATER********
Dougal comes running into Paddy's house shouting
"You'll never guess what! Your pig's only bitten my pigs ear off - now we have two pigs with no ears, how on earth are we going to tell them apart?"
Paddy replies
"Listen, I'll cut the tail off my pig and then my pig will have no tail and yours will have a tail,"
"Oh, that'll be grand,"
********A WEEK LATER********
Dougal comes running into Paddy's house shouting
"You'll never guess what! Your pig's only bitten my pigs tail off - now we have two pigs with no ears and no tails, how on earth are we going to tell them apart?"
Paddy replies
"Oh sod it, you have the black pig, i'll have the white one,"