— Daily e-mailing begun last June by brothers Tod and Dan quickly changed topics from meeting Friday to Dan stealing Tod's girlfriend. Yet the subject line sticks. "His next e-mail pops up, I think we're meeting Friday," says Dan. "But he always just calls me an asshole again." Tod commiserates. "I see 're: Friday', I'm checking my calendar. But Dan always just says again what great sex he and Kim are having." Psychologists say the brothers should be upfront, using subject lines like "You're no longer my brother" and "Wow, she's limber!"