Next time I wake up after an hour or so of sleep determined to find where I'd left my pet spider's cage? And, after not being able to find it, decide to ask [my housemate] where it is?
Next time that happens? I *really* need to remember that I don't have a pet spider. And that as it doesn't exist, it isn't in danger of starving to death before I find it. And I most definitly need to remember not to ask Andy if he's sure that I don't have a pet spider, because I'm probably dreaming.