This would be better titled "idiot gets himself fired (from Groupon)", since it's unlikely that Groupon has a policy of threatening their customers in writing,

This would be better titled "idiot gets himself fired (from Groupon)", since it's unlikely that Groupon has a policy of threatening their customers in writing, or much tolerance of employees who make it appear that they do. Incidentally, "As a resident of San Francisco for over 25 years" is code for "this is my first job out of college". Hopefully he'll be a little smarter by the time he finds his second.