I assure you once you get a little older and out of your parent's basement you'll stop being embarrassed by minor indiscretions such as sending, posting, and discussing an angry email sent to a prick of a customer service representative and then discussing it with total strangers on the internet. There are bigger things to be embarrassed about in life. Like trying to relieve a little abdominal pressure while waiting for a dentist appointment in a quiet nicely decorated lobby as you discreetly raise one butt cheek and confidently push only to find out your confidence was misplaced and you're in desperate need of a fresh pair of underwear and a wet wipe. Now that's something to keep to yourself.