Major Fail ... some idiot with email ....
A colleague mistakenly copied me into an email for another 'similarly' named soul in another faculty, over the last four (ish) years this happens very rarely as i have the 'preferable' address, and the senders assume that mine would be theirs. Without engaging in the sensible process of 'checking'.
Tonight, i get such an email, where i am the CC, fair enough, its probably been at least six months since the last mistaken email.
Email the soul, tell them, its not a problem, common courtesy etc.
Then they reply, trying to blame the email system for their error.
Maybe they should check on whom they have mistakenly emailed, the old adage GIGO does still apply.