I have @firstnamelastname.tld since last name was taken (unrelated to me).
Typically use [email protected] when giving out my email to keep track of spam so I used [email protected] when buying tickets.
At the check in the person saw my airline@ email and askes: oh do you also work for airline?
So when nurse misses a vein and want to try again you should ask them to uae a new needle?