I'll play devil's advocate and defend Fat Rick. I can see how he could've made this mistake.
Normally if you want to send an email to yourself, you just send it to your own email address. It's so simple even someone who's blind stinking drunk could do it. But when you start typing in the address, Gmail will auto-populate a list of email addresses you've interacted with. So instead of getting
patrickstomlinson@gmail.com, he would've likely seen
patrickstomlinsonisafatfaggot@gmail.com or
patrickstomlinsonpepperonichef@gmail.com. He could've easily clicked one of those in a severe state of inebriation.
It's an easy oopsie doodle anyone could've made.