Rivalry Aficionado T-Shirts

Dog tallying his score against the mailman.

When feud becomes best seller! Moby Dick vs Herman Melville!

"At last we've trashed the Stocktons!"

"Can I help you, Sadie?"

'I'll break you, Rendleman - But first I'm going to watch you squirm.'

'The fans are getting impatient. ... Let's give him another minute. If he doesn't come to by then, we'll the brawl without him.'

'All right, then, let's get out there and show them O's what we've got!'

'Dogs are so silly: Just throw a ball or a stick and they'll chase it and bring it back!'

I only root so hard for my time because I hate your team so much.

"Why don't you come get me? Oh that's right, you aren't allowed on the couch!"

"We're never going to resolve this if you won't get your own sword."

You were warned about mixed marriages.

Tic-tac-toe

"I guess there ain't room in this town for two bonsai specialists."

Next Wave Collegiate Sports

"That's $20 for you if you pluck the tail feathers off my rival over there..."

"Just being proactive."

Fight on the top

"Yin and Yankee fan"

'I warned him about watching the game at the opposition's pub.'

"That Melinda Alvarez thinks she's so smart! Well, I've been studying, and I'm gonna teach her a lesson on the test we have today!"

'I hate snowboarders!'

'For heaven's sake Armitage - can't you just accept 2nd place in the best leek category?'

'The rivalry at the pony club is getting out of hand.'

Fighting Gondoliers.

Lion v Kiwi.

Federal Employees Annual Easter Egg Hunt: 'This isn't fair - the CIA always wins!'

'Our competition is quite energetic.'

David Anderson vs. Goliath

"I thought they decided who was the best team last year?"

I've just found out our competitors are losing money faster than we are.

'You're useless, Johnson. I like that in a rival.'

'Friends are important...but you need enemies to keep your edge.'

'ON GUARD!' 'Touche.'

"Joseph's jealous brother adds bleach to the coat of many colors wash."