Last time round (and as a lightweight Cameroon fan) I changed my user name to 'Enu Kwabena' (it's to do with my sequence of birth within my family and the day on which I was born) but it caused massive confusion on here. I'm not sure I want to go through that again!
Have you unknowingly updated your password and saved it on your work/other access so you don't need to log in?
As you are already logged in at work you may be able to change it.
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