I got <first_name_initial><middle_name_initial><last_name>@gmail.com in imitation of my university webmail account name. My brother who had the same first name and middle name initials knew this and had adjusted accordingly.

However, recently, someone registered this e-mail for school and I kept receiving their school e-mails.

My e-mail account is already roughly two decades old at this point, so I thought I was safe from this kind of problem.