The greatest password on Earth

My sister was helping my father with the computer the other day. Dad is not exactly very computer literate.



He did, of course, set up some sort of an email account. While trying to explain to him how things worked, my sister asked my dad to put in his password for his email account.



Dad entered: "1"....."2"....."3"....."4"....."5"



My sister responded, "Are you serious?"



Then my dad hit "Enter".