Bell jokes

A guy walks into a bookstore and asks for a book on Pavlov and Schrodinger.

The book keeper says it rings a bell but he doesn't know if it is there or not.

A series of cow jokes

Q: What do you call a sleeping cow? A: A bull-dozer Q: How does a farmer count his cows? A: With a cowculator Q: Why do cows wear bells? A: Because their horns don't work Q: Why don't cows have money? A: The farmers milk them dry Q: What's a grumpy cow called? A: Moooody

I got gas today for $1.39.

Unfortunately it was at Taco Bell.

Paddy rings his new girlfriend's door bell, with a big bunch of flowers. She opens the door, sees the flowers, and drags him in. She lies back on the couch, pulls her skirt up, rips her knickers off and says 'This is for the flowers!'

'Don't be silly,' says Paddy, ‘You must have a vase somewhere!'

Pavlov walks into a bar

As he opens the door the bell rings. "Oh shit!" Yells Pavlov, "I forgot to feed my dogs!"

The creator of the very first knock knock joke..

Must have won a no-bell prize