Don't repeat what you've already said.. thats basically spam.
People do have a full right to be angry if they choose to be.. but it may not have been the users complete fault as this doesn't seem like that was intended.. seems more of a server side error on their part, but IDK why that screeching would occur in a PHP / SQL error like that.. but all the same..
Hopefully noone gets hurt / offended by that.. or damages any hardware.
Luckily for me, my speakers were low.