Pseudo-safe email

I thought it was relatively safe to write my email address as (for example):
myname at eeng dot dcu dot ie

However, I speculated that this formula is far too simple, and I wondered if spammers have already exploited this notation. I found that google returns over 100 million hits for:

* at * dot * dot *

So it seems that this method of mail-obfuscation is ineffective. Email addresses harvested in this way probably produces a list of people who are both more cautious and more technically knowledgeable than average. I'm currently writing the bot and I'm in negotiations with ThinkGeek's paranoia division.