1,622. One to tell the original joke, and the rest to submit give some minor variation of it! For example:
or
Because sometimes you can get rid of cancer.
or
Three skunks fighting over a pickle
First dog: My master calls me Furball. How about you?
Second Dog: My master calls me Sitboy
or
An onion
or
I rang her up, I said "Did you get my drift?".
or