E-mail disclaimers

Personally, I find email disclaimers very, very silly and pointless:

1. they ignore the fact that, if you futz up the recipient's address, one or more postmasters automatically receive a copy of your message and
2. people are generally lazy. They are more likely to forward or copy the message (to someone else) without deleting anything, not even the obnoxious signature blocks or silly disclaimers.