I had a customer a few weeks back with mail problems. When I had her open her Outlook Express it took a good 5 minutes. I asked what the heck was taking so long and she replied that it was "downloading mail."
I replied that it couldn't be doing that because she wasn't online at the time. Then she's like, "Oh wait, I mean loading mail."
I asked how many messages OE had to load and once she finally got it up she said there were 34,000 messages in the inbox. All read.
She was one of those people that thinks that spam truly is sent out to her personally.