Half a dog.
Because every time one bug was fixed, 2 more appeared.
Their patients are 2'
Lean beef. bonus: What do you call cows with no legs Ground beef.
The finish line at the Boston Marathon.
Half a dog
Half a cat
Pupil: Up and down or across Teacher: What do you mean Pupil: Well up and down makes a 3 or across the middle leaves a 0!
He wanted to lay it on the line!
Half-a-dog!