This is what happens if you do....
BBC NEWS | Technology | Spam experiment overloads inboxes
Surfing the web unprotected will leave the average web user with 70 spam messages each day, according to an experiment by security firm McAfee.
It invited 50 people from around the world, including five from the UK, to surf without spam filters.
The experiment revealed that UK residents are most likely to be targeted by the infamous Nigerian e-mails and "adult" spam.
One UK participant received 5,414 spam e-mails during the month-long trial.
BBC NEWS | Technology | Spam experiment overloads inboxes