In an application that everyone in production floor used... I made some "improvements"... Next I know I get tons of tickets because is really slow... Like 20 minutes waiting and it doesn't load... I try with my user in their computers and it loads instantly... Puzzled... After trying in many computers my user loads instantly... Oops... I left a if(user = "me") skip all active directory checks 🙄... Made all production floor lose about 3 hours 😆 because I didn't believe 😛